Beakers and flasks are an essential items in any science lab and are something that always need to be renewed. Breakages and losses mean that these are items that are in constant demand. They come in all shapes and sizes and we highlight some of the very best picks available right now on Amazon in our top 5 reviews below…

#5 Emsa Perfect Beaker

Emsa Perfect Beaker

 

We’re going to start our reviews with a look at first choice, the highly versatile Emsa Perfect Beaker Alton Brown from the TV Show Good Eats loves this product – high praise indeed! This item is the perfect answer for precise measurement of both liquid and dry ingredients like healthy drinks, sauces, salad dressings, marinades and flour mixtures. Its ingenious narrow base gives great fine tuning and accuracy when measuring smaller quantities. Many buyers have commented that the eye-catching shape of the unit is very aesthetically pleasing and a great addition to any kitchen.

As a measuring dish it’s unequalled, not only is it very accurate, it measures in all the most commonly used units – milliliters, cubic centimeters, fluid ounces, pints, teaspoons, tablespoons and cups. Great if you find pouring into spoons to measure quantities tricky to do. One big advantage of the Emsa Perfect Beaker is that you can mix a few ingredients right in the unit by adding them in and totting up the measurements on the scale, saving time and washing up.

It is made in Germany from BPA free plastic, has a beveled rim that makes pouring both easy and drip-free and is dishwasher-safe (although some people prefer not to put plastic in the dishwasher). It can handle boiling water easily and comes in two style options – with seal or without seal, this is the Esma terminology for with or without a lid.

 

 

#4 Glass Beaker Set – 3 Sizes – 50, 100 and 250ml, Karter Scientific 214T2

Glass Beaker Set - 3 SizesNext up for review we have a Glass Beaker Set, the 214T2 by Karter Scientific in 3 Sizes – 50ml, 100ml and 250ml. This set of the three most popular sizes of low form beaker is made from sturdy Class A high quality borosilicate glass which has great inert properties, meaning the beakers will not react with their contents. The range of sizes makes this an ideal solution for most small measuring and mixing jobs.

There’s a vast array of uses for these beakers, including measuring liquids and powders, essential oils, candle making, heating substances, electroplating, home and school laboratory and as a more than adequate replacement for much more expensive lab equipment. The beakers are very good quality for the low price with rolled rims and rounded bottom edges. They represent excellent value and are not easily broken –  being equally at home with high temperatures or freezing liquids.

 

 

#3 Glass Erlenmeyer Flask Set – 3 Sizes – 50, 150 and 250ml, Karter Scientific 214U2

Glass Erlenmeyer Flask Set - 3 Sizes

Also by Karter Scientific is the 214U2 Glass Erlenmeyer Flask Set in 3 Sizes – 50ml / 150ml / 250ml. Again these are three of the most popular and practical sizes of flask in use today and are made from heavy duty high quality 3.3 borosilicate Class A glass.

With the range of sizes in the set, these highly versatile flasks are suitable for measuring and mixing most small quantities – like for example candle making, science projects, heating liquids, cooking recipies and much more. The measurements on the glass are easy to read, so if you need a inepensive, great value for money alternative to a major brand product like Pyrex this three-piece Glass set will do the job for you.

 

#2 213A2 Karter Scientific Low Form Glass Beaker 5 Piece Set 50, 100, 250, 500, & 1000ml

213A2 Karter Scientific Low Form Glass Beaker 5 Piece Set

Another Karter Scientific product – the 213A2 Karter Scientific Low Form Glass Beaker 5 Piece Set in 50ml, 100ml, 250ml, 500ml and 1000ml is our runner-up in this review section. These glass beakers are made from high quality glass, sturdy and hard wearing 3.3 borosilicate Class A with etched graduation markings.

They are microwave-safe and can stand up to dramatic changes in temperature, several buyers have reported that they have successfully gone from boiling heat, ovens and even torches to plunging into ice without any noticable effect on the beakers. The range of sizes right up to one litre makes this set very versatile and highly useful in a lot of home and laboratory applications.

 

#1 213C2 Karter Scientific Graduated Cylinder

213C2 Karter Scientific Glass Graduated

Our top pick in the Beakers and Flasks section is the 213C2 Karter Scientific Graduated Cylinder 3 Piece Set 10ml 50ml and 100ml are a bit different in that they have a hexagonal base which prevents the beakers from rolling off the work surface and smashing if they are tipped over. They also have three small dimpled feet on the bottom that they stand on, which prevents heat direct transfer to the surface you are working on and can also help to reduce mess.

Perfect for laboratory as well as home use and equally at home holding acid as they are with cake-mixing ingredients, aromatherapy products, perfumes or any small quantities. The cylinders have clear, easy to read graduated markings and have decent accuracy for a product in this price range.

There are many uses for glass bottles in scientific laboratories, the type of glass used being dependent on the particular requirements of the application. The use of glass as a material for lab bottles is becoming less common due to the range of plastic substitutes available – which are virtually unbreakable and cost far less – but sometimes only a glass bottle will do for the job. Glass has the advantage of being more non-reactive as well as having good heat resistant properties and being transparent. In laboratories bottles are usually used for storing samples and reagents but the items below also have more general uses that they can be put to. There is a wide range of glass bottles available in all of the popular sizes from half an ounce up to 16 ounces to cater for most needs, let’s take a look at what we think are some of the best buys around with our review of the top 5 picks…

#5 1oz Amber Boston Round Glass Bottle with Fine Mist Sprayer

1oz amber with sprayerThe highly rated 1oz Amber Boston Round Glass Bottle with Fine Mist Sprayer comes in a box of 12 (boxes of 6 also available) and is equally at home in the scientific lab as it is in its alternative use in the home, kitchen and garden. This is a sturdy bottle that can withstand some robust treatment due to the good quality thick glass it is made from and is great for transporting small quantities of liquid when travelling as it will fit easily into any purse or bag. The amber color protects the bottle’s contents from the light. The tight fitting lid gives a great secure fit and will not leak or loosen in normal use. The sprayer is longer than the bottle and can either be cut to the desired length or even better be left a bit longer than the bottle to make sure it sucks up every last bit of the liquid. The sprayer produces a very fine mist due to the small spray hole and if it is to be used domestically for spraying oil for example (it actually comes with a sample of oil), the hole can easily be enlarged with a needle to produce a better spray. Other uses are facial oils, face toner sprays, hair treatments, aromatherapy, essential oils, homemade hand sanitizer, air fresheners, throat sprays, perfumes, peppermint oil, disinfectant spray, insect repellents, after sun spray and cosmetics.
The bottle is available with a choice of either a black or white screw top lid and sprayer and as well as this 1oz size it is available in a bigger 2oz version.

 

#4 16oz Amber Glass Bottle with Trigger Spray for Essential Oils16oz Amber Glass Bottle with Trigger Spray for Essential OilsThe 16oz Amber Glass Bottle with Trigger Spray for Essential Oils comes in a pack of 6 bottles and is made from actinic glass which is amber (darkened brown) in color. This is the most popular color for dark storage bottles as it will block ultraviolet light and infrared radiation which makes it perfect for protecting light-sensitive contents in scientific labs but also ideal for a whole range of other uses. The inert nature of the glass means that there will be no reaction between the material of the bottle and its contents which means that the essential oils won’t be harmed by long term storage and also the bottle won’t break down through time. As well as essential oils these handily sized bottles are great for chemicals, health and beauty care such as facial lotions, perfumes, hair treatments or aromatherapy as well as for many other oils that you want to spray or mist over a specific area. Many buyers of these bottles also use the to spray atomized cooking ingredients in for example cake decoration or around the home and garden for use in insect and pest control or cleaning using natural and home-sourced products. Remember if you are going to be using these bottles in multiple applications to get some self-adhesive labels to mark them with.

 

#3 1/4 Dram AMBER Glass Vial – Screw Cap w/ Orifice Reduce

Dram-AMBER-Glass-Vial-Orifice

The 1/4 Dram AMBER Glass Vial – Screw Cap w/ Orifice Reducer – Pack of 24 is made from borosilicate glass which is less prone to thermal stress and is therefore ideal for reagent bottles. Other uses for these versatile little bottles include storage of pills and other dry goods, pharmaceuticals and essential oils and perfumes. These small vials are sold in packages of 24, each bottle having a capacity of 1.5 millilitres (a quarter of a dram) and are therefore perfect for travel and flying. The bottles come with a foam-lined screw cap and an orifice reducer. This is a highly recommended buy for storage of small quantities of lavender oils, essential oils, perfumes and the sturdy thick glass construction will protect the contents in most cases even if the glass is dropped. It is recommended that you also buy some labels along with these vials if you are going to use them for different things to avoid mixing the bottles up.

 

#2 2oz Amber Glass Bottles for Essential Oils with Glass Eye Dropper

Amber-Glass-Bottles-Essential-Dropper
These 2oz Amber Glass Bottles for Essential Oils with Glass Eye Dropper allow precision mixing of liquid ingredients using the eye dropper, the dropper itself reaches the bottom of the bottle so it lets all of the contents be used successfully without any wastage. A separate dropper is included with each bottle and the amber glass construction protects any liquids that are sensitive to light and which might degrade if exposed to it. This makes these bottles a good choice for eye drops, essential oils, herbal tinctures, home crafts, home-made beauty products such as shampoo, massage oil, scents, jojoba oil, tea tree oil and various cooking ingredients such as colorings and essences.

 

#1 1oz Cobalt Blue Glass Bottles

1oz Cobalt Blue Glass Bottles with Glass Eye Dropper - Pack of 12
Our top pick is the 1oz Cobalt Blue Glass Bottles which combines the aesthetics of a really nice looking bottle which won’t look out of place in any circumstances with the practicality of a useful, versatile and sturdy container. Perfect for use in any kind of application that lends itself to a glass bottle such as laboratory chemicals as well as domestic home and garden applications such as essential oils, cooking, cleaning, insect control, beauty products, cake making, home concoctions etc. The tightly fitting screw top houses the precision dropper which allows the user to dispense the contents accurately a drop at a time. The capacity of the bottles is 29.5 milliliters.

As well as our top recommendations above, there are various other sizes and quantities available so if you don’t see exactly what you want here just do a search and you should find what you’re looking for.

Hazardous gases can be a real danger in the home and workplace but there are various different gas detectors covering all the dangerous gases you may find. As well as gases that can cause explosions or fires, there are other deadly dangers from poisonous gases in the home. Carbon monoxide and radon are both referred to as “silent killers” as they are impossible to detect without a gas sensor, below are some great recommendations as to gas detection kit that you can buy today to keep your home, office or school safe from these killers.

#5 Kidde KN-COPP-3 Carbon Monoxide Alarm

nighthawk

Carbon monoxide poisoning is one of the main causes of domestic accidental death by poisoning in America but it can easily be prevented in your home by installing this Kidde KN-COPP-3 Carbon Monoxide Detector. CO gas levels can reach deadly levels without you realising it as it is an odorless, colorless gas which can be released by domestic appliances and office equipment. CO poisoning symptoms are difficult to spot and can often go undetected, being similar in nature to common illnesses like the flu. It is therefore essential to have at least one CO monitor/alarm system in place in your home – and indeed it is now compulsory in some areas. This unit plugs directly into your AC power outlet and has a battery back up which takes over automatically in the event of a power failure. Carbon monoxide levels are monitored continuously and you can see in an instant what they are on the digital display, a loud beeping alarm will sound if a dangerous level of gas is reached.

 
#4 UEi Test Instruments CD100A Combustible Gas Leak DetectorUEi Test Instruments CD100A Combustible Gas Leak Detector

The UEi Test Instruments CD100A Combustible Gas Leak Detector is a professional standard instrument designed for service engineers to enable them to detect combustible gas leaks in the home and commercial premises. But at an average cost of $100 to call out a plumber or furnace repair man, the unit pays for itself in one use. This gas detecting device will pinpoint even the smallest leak, right down to which side of a joint the leak is on – even when the use of more traditional methods prove ineffective. If you use any of acetone, benzene, butane, propane, toluene, methane, ethylene, gasoline, halon, hydrogen sulfide, solvents, thinners, or refrigerants remember that there are no safety circuit breakers to trip like you would get in an electrical system. The detector is simplicity itself to use, there’s nothing complicated to try and work out, just switch it on and listen for an increase in tick rate.


#3 TIF Instruments TIFXL-1A Refrigerant Leak Detector

TIF Instruments TIFXL-1A Refrigerant Leak Detector

Refrigerant Leakage is a very serious hazard in commercial and industrial premises where refrigerators are used and to a lesser extent in the home. Indeed because of the dangers of refrigerant gases getting into the atmosphere, all refrigeration equipment needs to be properly disposed of. The TIF Instruments TIFXL-1A refrigerant leak detector can detect all halogenated refrigerants, including fluorine and is part of the new range of gas leakage equipment with the brand “Generation X”. The company says that they have completely redesigned the instrument both aesthetically on the outside and internally with a new microprocessor based operating system. The redesigned sensor tip gives increased sensitivity and reliability and sends 2000 signals per second back to the internal computer. This machine has had some very positive reports from customers and is our top rated refrigerant detector.

 

#2 Bacharach Leakator Jr 0019-7075 ABS Plastic Combustible Gas Leak Detector

Bacharach Leakator Jr 0019-7075 ABS Plastic Combustible Gas Leak Detector

Our runner-up selection in the gas monitoring section is the Bacharach Leakator Jr. Combustible gases such as butane, methane, acetylene and those given off by gasoline, paint thinners, solvents etc are any gas that can cause fire or explosion and can obviously be deadly in the home or workplace. This is a very compact and portable combustible gas meter at only 6 inches long, but coming complete with a 12″ extension hose for extended reach to check for small pockets of gas in awkward, hard to reach spots. Featuring dual sensitivity for detecting gas in the wider area then pinpointing a leak in a pipe for example. A fully portable unit, the Leakator gas indicator is simplicity itself to use and can pinpoint large or small leaks whilst needing no calibration whatsoever.

 

#1 Corentium 9800401 Digital Electronic Radon Gas Monitor

Corentium radon gas monitor

Radon gas is known as the silent killer and the Corentium Radon Gas Detector will help to protect you, your family and your workplace from its dangers. Radon is a radioactive gas that is given off naturally from rock and gets into houses at the lowest points – for example foundations, water pipes, cracks in walls at low level and cavity wall insulation. One of the problems of modern very highly energy-efficient houses is the lack of ventilation, this can lead to a build-up of radon as the gas lies at low level and once it is in the house does not have a means of escape. Good radon gas testing kit is essential to detect dangerous levels of the gas and allow you to keep your family safe. This instrument is the most advanced electronic radon gas detector available as a handheld unit at an affordable price. Don’t take a chance with potentially dangerously high levels of radon in your home, in your school or in your workplace when the Corentium lets you monitor average radon levels over 1 day, 7 days and a year – all at the same time. This is a very accurate machine with only a 5% error band and is extremely energy efficient – it will run for up to 3 years on one set of batteries. Recalibration isn’t a problem either as it is not required for the whole lifetime of the meter. Another big plus point is the simplicity of use, you literally don’t need to do anything other than insert the batteries and press the reset button for the monitor to display all the information you need. Other radon testing equipment is single use but with this kit you can reset it and reuse, saving a lot of money against the cost of expensive professional radon testing services.

 

The function of a laboratory water bath is to heat containers used in biomedical or pharmaceutical tests at relatively low temperatures. The heating bath works on the principle of electrical resistors raising the temperature of the liquid (water or oil) used in turn to heat the specimens. Maintenance of water baths is important and when considering buying, you should take into account the following specifications:

Material – Generally stainless steel for cleanliness and prevention of rust
Coating – A high quality epoxy powder coat finish will guard against chipping to the container and is easy to clean
Heating elements – Recessed and out of the way so you don’t have to come into contact with them
Seamless construction and rounded (radius) corners – Ensures strength and integrity of the unit, there won’t be any leakages from burst seams

There is a great range of laboratory baths on Amazon right now and the following guide will help you decide what one is best for you.

#5 JULABO TW8 digital water bath

JULABO TW8 digital water bath

Julabo is one of the leading digital water bath manufacturers and the TWS is right up near the top of the range of this category. If you are looking for the best available and are prepared to pay a bit extra, then this is definitely the choice for you. Whether you need a high quality water bath for the laboratory, dental practise or in an industrial material testing application or a full range of other uses you will find that this kit will carry out the job efficiently and accurately. Keyboard selected temperature control to within 0.2°C via microprocessor technology, ensuring stable heat across the range of applications.

 

#4 Thomas Analog Water Bath

Thomas Analog Water Bath

With the emphasis on economy and reliabilty, the Thomas water bath uses analog controls rather than digital but still produce the versatile control required for all general applications and are more than adequate for most general laboratory purposes. Temperature control is stable and consistent over a range from 5 to 100 degrees C and the analog controller gives better stability and precision than most of their digital counterparts at +-0.25 degrees C. Safety is provided by a protective thermostat which cuts out the bath on over-temperature or in the event of low water in the reservoir. Capacity of the unit is 2 liter and a raised lid design allows a variety of sample bottles to be accommodated with ease.

 

#3 Alkali Scientific BSH-1004 Benchmark 4 Block Digital Dry Bath

Alkali Scientific BSH-1004 Benchmark 4 Block Digital Dry Bath

Although this section of our reviews is mainly concerned with digital water baths, there are other alternatives that might be worth you considering. For example the Alkali Scientific BSH-1004 Benchmark 4 Block Digital Dry Bath is a very compact unit for the precise and even heating of tubes. The BSH-1004 uses Benchmark dry blocks which can take up to 96 tubes at a time in a footprint area of less than a square foot. The precision machined blocks are designed to fit exactly round the tubes for maximum efficiency and highly accurate digital temperature control. Supplied with a special block remover tool for ease of block removal and exchange, even under full heating conditions. Tube sizes accommodated are 0.5, 1.5, 2.0, 15 and 50 ml.


#2 Premiere HH-4 Digital Water Bath, 4 Wells Capacity

Premiere HH-4 Digital Water Bath, 4 Wells Capacity

The Premiere HH-4 Digital Water Bath might not be the most sophisticated piece of equipment on the market but there is no doubt that represents terrific value for money and is perfect for most general use. Temperature is controlled digitally and a good level of precision is achieved from the controls so you can be confident that your work is always carried out in a consistent temperature environment. Ideal for working with drugs, chemicals and biological products the Premiere HH-4 can be used for drying, distilling, drying, soaking and condensing of the specimens. Construction of the waterbath is stainless steel – the best available for rust prevention and cleaning.

 

#1 Edvotek 539 Stainless Steel Digital Waterbath, 1.8L Capacity, Ambient to 95 Degree C

Edvotek 539 Stainless Steel Digital Waterbath, 1.8L Capacity, Ambient to 95 Degree C

For great performance at a price that is excellent value, the Edvotek 539 Stainless Steel Digital Waterbath is a great piece of kit to consider and is our No.1 choice. This digital water bath has been improved and enhanced in a new design to bring better performance but still at an affordable price. Main upgrades include digital temperature control to maintain the chamber, accurate to within +/- 0.5 degrees C and a redesigned deeper chamber to give more capacity and hold more flasks and bottles. Also added is a low water level sensor which will cut off power and prevent the unit burning out in the event of loss of water. The stainless steel chamber provides easy cleaning as well as good corrosion resistance.

Autoclaves and Sterilizers are used by dentists and doctors in the dental and medicinal industries as well as laboratories to sterilize glassware, utensils and even some clothing like lab coats etc. Another application that is using autoclaves more and more is tattooing, tattoo artists need to get their needles scrupulously clean to prevent infection and this is the perfect equipment for them. There are two main principals of cleaning used, steam or ultraviolet light depending on what it is that needs to be cleaned.

The following are what we have found to be the best buys available right now on Amazon.com.

#5 Tuttnauer 1730 Value Clave

Tuttnauer 1730 ValueKlave

First up we are recommending the Tuttnauer 1730 Value Clave, like all products from this manufacturer it is pure quality. This is the entry level machine in the range but it perfect for many smaller practices and businesses with its compact 7″ chamber. Another option could be to get one of these units as a second autoclave for your operation for more cleaning capacity or for use as a standby in case your main autoclave is out of action. Simplicity and ease of use is at the heart of the 1730 with easy to use controls and the cleaning cycle is fast and efficient.

 

#4 SBSC-23L Autoclave Sterilizer by SMTmax

SBSC-23L Autoclave

Next up for review is the SBSC-23L Autoclave Sterilizer, a very nice machine that sterilizes and sanitizes your medical instruments – whether they are packed or unpacked. It is fully compliant with EN13060 standards for convenient cleaning and European B standard vacuum pre-drying, whilst residual humidity gets down to as low as just 0.2%. This model has a top-opening water tank for ease of accessibility and the machine is designed so that the steam reaches every corner of every instrument for perfect cleaning each time. Fully computerized control with a nice easy to read panel makes this a breeze to use.

 

#3 12L Liter Portable Autoclave Steam Sterilizer for Medical Dental Tattoo Professionals

12L Liter Portable Autoclave Steam Sterilizer for Medical Dental Tattoo Professionals
Number three is this Autoclave Steam Sterilizer, which is fully portable and with its 12 liter capacity is ideal for medical, dental and tattoo professionals alike. It uses saturated steam for rapid and efficient sterilization and it suitable for use in hospitals, health centers, tattoo parlours, clinics, science centres and research institutes. Many various items can be sterilized – from glass utensils, medical equipment, surgical dressings and needles among others. The unit has very low power consumption, about 50% less than using a conventional stove and has rapid heating and cooling. Very versatile with dozens of uses, some of the interesting other uses for this machine include making high quality drinking water and even use as a pressure cooker. Acid and alkili proof in 100% stainless steel with the emphasis on safety, the lid is equipped with a safety valve and air releasing valve and features 6 point locking.

 

#2 Tuttnauer Autoclave Sterilizer

Tuttnauer Autoclave Sterilizer

Runner-up is the Tuttnauer Autoclave Sterilizer, a great piece of kit from one of the market leaders. Tuttnauer is an American company that has been making and servicing sterilizing equipment for over 20 years now and deserve their place as one of the most trusted brands in the industry. Available in a wide range of sizes and capacities all built to the same exacting standards, this autoclave is ideal for use in dental practices, hospitals, labs and infectious waste disposal units. Featuring an electronic fast closed door system, the unit is fully automatic.

#1 All-American Electric 27.3 Quart 650 Watts/6.88 amps Sterilizer

All-American Electric 27.3 quart

Our most highly rated machine is the All-American Electric 27.3 Quart which comes highly recommended by users on Amazon. The operation is dead simple, just pour some distilled water into the bottom of the unit and place your items to be cleaned on the rack above. Featuring a metal to metal seal on the lid, this is perfect as it creates a better seal while at the same time means that you won’t have to spend money on replacing gaskets, an expense that can be quite costly over time. Available in both 120V and 220V models (make sure you order the right one for your electrical supply) and there is a knob for adjusting the temperature in a range (from 1-10, 100 degrees F being the lowest)

Note that as well as being available in different voltages, there is also a less expensive 14.5 Quart model available that we would recommend if you have smaller stuff to clean.

Conductivity meters measure how well a solution can conduct electricity, this is useful in a lot of general and industrial applications. Conductivity varies with temperature and so conductivity meters have built-in temperature compensation and often have temperature measurement incorporated into the unit.
The main uses of a conductivity meter include water purification systems, boiler water, swimming pools, hydroponics (water gardening), monitoring public water quality, reverse osmosis deionization (RODI) units, fish tanks, testing well and spring water, hospitals, brewing and drink making industry.

There are some great instruments for sale at the moment on Amazon, let’s take a look at our top five, beginning with number 5…

#5 ULTRAPEN TDS/Conductivity/Salinity Pocket Pen

ultrapen

First we’ll take a look at the ULTRAPEN TDS/Conductivity/Salinity Pocket Pen. This is a great little instrument suitable for many different uses that is fast, accurate and also very easy to use. This device is so easy to use that it makes taking your readings a pleasure, just press the button and dip into the water solution and you will get your reading out in a matter of seconds. If you are looking for portability and ease of use with a meter that can be operated with one hand then this is the choice for you.

 

#4 Hanna Instruments HI 98129 Waterproof pH/Conductivity/TDS Tester

Hanna Instruments HI 98129

 

Our second pick is the Hanna Instruments HI 98129 pH/Conductivity/TDS Tester, an excellent instrument that is both very easy to use and very accurate. Hanna is one of the most trusted names in measurement and this meter is no exception to their high standards. This high quality device is waterproof and will float on water. It’s ready for use as soon as you turn it on and you will get very accurate readings making it suitable for a whole range of applications. Unlike some other conductivity testers, the Hanna HI 98129 has replaceable electrodes – thus prolonging the life of the meter.

#3 YSI Pro30 Field Conductivity/Salinity/Specific Conductance/TDS Meter, 0 to 200 mS/cm, 0.1 mS/cm Resolution, +/- 0.5 Percent Accuracy, -5 to 55 Degree C

YSI Pro 30

Next up we feature the YSI Pro30 Field Conductivity/Salinity/Specific Conductance/TDS Meter which is expensive but is a serious bit of kit. One of the most rugged and reliable meters available on the market with an IP67 casing and a 1 metre drop test accreditation to give many years of service in any conditions. The YSI has a 4 electrode system for excellent stability in measurement making it the first choice for many professionals who need to depend on their kit to get the job done every time and can store up to 50 sets of data.

 

#2 Extech EC400 ExStik Waterproof Conductivity, TDS, Salinity, and Temperature Meter

Extech EC400 ExStik

 

The runner up in this section is Extech EC400 ExStik Waterproof Conductivity meter which comes highly recommended for industrial, commercial and domestic use. It measures salinity in both ppm (parts per million) and ppt (parts per thousand) depending on the levels in your solution and has an independent endorsement from a scientist on the sales page verifying the accuracy of the meter. Although this is an advanced piece oof equipment suitable for industrial applications, the price makes it available for household duties like checking salt levels in a swimming pool or monitoring the salt in purified water.

The package comes complete with conductivity cell, protective sensor cap and sample cup and batteries are included.

#1 HM Digital COM-100 Waterproof Combo Meter for EC, TDS and Temperature, 1-Pack

HM Digital COM-100

Our top pick in the conductivity meter section is the HM Digital COM-100 Waterproof Combo Meter, a versatile meter that is great for measuring electrical conductivity (EC), total disolved solids (TDS) and temperature. The meter is easy to use and set up, with push-button calibration and has a very useful “Hold” feature that lets you keep the reading displayed so you can read it when the meter is out of the water. So simple to operate, just switch the meter on and dip. You get an instant, accurate reading. Highly recommended!

It has a rugged waterproof housing, comes with a full one year warranty and batteries are included.

Vacuum chambers are devices for removing gases including air from an enclosed space. The air is sucked out of the enclosure using high performance vacuum pump and the chamber has to be sealed to a high degree to prevent ingress of air using silicon gaskets which do not degrade and are resistant to chemicals. The chambers are used in industrial as well as scientific applications and are capable of maintaining their vacuum seal for days at a time.

Here are the best 5 vacuum pumps and heaters on Amazon in 2014, starting with number 5…

#5 Non-stick Silicone Oil Concentrate Round Mat for 10″ Vacuum Degassing Chambers by Busy Bee Distributors

Non-stick Silicone Oil Concentrate Round Mat
To begin with in this category we have chosen the Dab Wizard Non-stick Silicone Oil Concentrate Round Mat. This is the ideal accessory for your 10″ Vacuum Degassing Chamber and will fill the entire surface area of the floor of your chamber – allowing you to produce much more in every batch. Forget messing around trying to fit smaller, rectangular pads into the vacuum chamber, use this non-stick silicon mat that is specifically designed for the job. Note that this mat is microwave safe as well as being heat resistant.

#4 Hand Vacuum Pump by MHB

MBH Hand pump

Next up we have the MHB Hand Vacuum Pump, a great little pump at a terrific price. This pump is one of the most popular and best selling around, and it’s easy to see why. Perfect for both laboritory and school / college as well as on the shop floor. The vacuum gauge is caibrated in both inches and millimeters, the range being 0-30 inches mercury and 0-760mm mercury and it can delvelop a vacuum of 25in Hg / 620mm Hg (and hold it). As you would expect with a quality product like this it comes with a trigger for quick vacuum release. It can also be used for siphoning by attaching a 1/4in tube in place of the outlet cap, allowing you to transfer 1 cubic inch per stroke.

#3 1.6 Gallon Flat Vacuum Chamber to Degass Urethanes, Silicones, Epoxies and Burlwood by BestValueVacs.

1.6 Gallon Flat Vacuum Chamber

Our number three selection is the slightly larger version of our first choice, the BestValueVacs 1.6 Gallon Flat Vacuum Chamber. Like the 1 gallon version, it is also used in a wide variety of applications, vacuum drying, vacuum coating and to remove air from product – essential oils, urethanes, epoxies, burlwood and silicon for example – often as a preparation for molding. These are the best vacuum chambers on the market and can hold their vacuum for days. Construction is simple, being a high strength aluminum container with a clear plastic lid, sealed by a top of the range reversible silicon gasket from which the air is taken out using a vacuum pump.

#2 HeatVacXL w/ 5cfm Pump – Heated Vacuum Chamber Extraction Degassing Solvents – Heated Vacuum Chamber Extraction Degassing Solvents by HeatVac

HeatVac HeatVacXL 5cfm Pump

Runner-up is the HeatVacXL w/ 5cfm Pump – Heated Vacuum Chamber. It is often quicker and easier to degass many types of material by applying heat to them but traditional chambers are either difficult to heat or it is impossible to regulate the temperature accurately. This heated vacuum chamber is out best recommendation for accelerated degassing. Supplied as a complete kit, everything is there for you to get started – including all the accessories you’ll need and is guaranteed to be easy to set up and operate. It is a bit more expensive than a standard vacuum chamber but if you need top performance and controllable, accurate levels of heat then this product is the one for you. The HeatVacXL will hold a full vacuum, ie 29.9″ Hg, for a full 24 hours at room temperature. Ideal for extracting essential oils and aromatherapy as well as crafts and small batching.

#1  1 Gallon Flat Vacuum Chamber Kit to Degass Urethanes, Silicones, Epoxies and Burlwood by BestValueVacs

1 Gallon Flat Vacuum Chamber Kit

Our number one pick in this category is the 1 Gallon Flat Vacuum Chamber Kit by BestValueVacs. This apparatus has proven to be the best and most reliable available for the money, due to the aluminum one gallon high-strength container, the Unique leak-free bulkhead design and best gasket on the market. It comes ready to use and is the one most people depend on when they want to ensure that their vacuum is maintained. The product is supplied with a 50 micron air filter for the lid and 8×8 silicone slick pad.

A lab stirrer (or lab mixer) is used for mixing fluids. There are two distinct types of stirrer – the magnetic stirrer and the overhead stirrer. The magnetic stirrer produces a magnetic field to rotate a stir bar that stirs the fluid in the container on the plate. The overhead stirrer is dropped into the liquid container as an agitator – similar to the way a food mixer works. A magnetic stirrer is quieter and more efficient than a motorized stirrer as it has no moving parts to break or wear out. The stir bar is also small and easy to clean and because it has no lubricants there is no chance of contamination.

Used in scientific and manufacturing applications, there are almost endless applications for these pieces of kit: from making yeast starters for home brewery to biodiesel production, food and drink to stirring cultures.

Here are the best 5 stirrers and mixers you can buy on Amazon right now, starting with number 5…

#5 Scilogex 86152003 Model MS-PB BlueSpin Classic Analog Magnetic Stirrer with Plastic Plate, 100/240V

BlueSpin Classic Analog Magnetic Stirrer

Our first choice is the Scilogex 86152003 analog magnetic stirrer, it’s a simple, basic stirrer for higher volume use as it has a 3 liter capacity. A stir bar is immersed in the liquid and a rotating magnetic field causes the stir bar to spin and stir the liquid. The speed is adjustable using the knob on the front and the built-in electronic speed control ensures that a constant speed is maintained, even when the load changes. The high magnetic adhesion keeps the load firmly fixed to the plate during use. Requires a 100/240V power supply.

 

#4 Overhead Mixer Stirrer 100w by CB

Overhead Mixer Stirrer

Secondly we have the Variable Speed Overhead Mixer Stirrer from CB. This is different from the magnetic type of stirrer in that it has a conventional motor powering a mixing shaft which is lowered into the substance that is being stirred. This type of stirrer is perfectly suited to the classroom or small lab for mixings samples, buffers and solutions, in formulation, research and development, and clinical research. Easily moved between locations due to its small dimensions, even with the stand the whole unit only weighs 17 lbs. Power supply: 110V. Speed: 0-2000 rpm. Timer range: 0-120 minutes.

 

#3 Hanna-Instruments HI310N-1 Speedsafe Heavy Duty Magnetic Stirrer, 7-3/32″ Length x 7-3/32″ Width x 2-51/64″ Height, 800 to 1000 rpm, 115 VAC, 32 to 122 Degree FHanna-Instruments-HI310N-1Our next selection is the Hanna-Instruments HI310N-1, an excellent heavy duty stirrer with a capacity of 5 liters. It’s a bit more expensive than the smaller capacity models but if you need production-level power then this is the right choice for you. This machine is ideal for use in a laboratory as well as in a production environment. Speed range is from 100 rpm to 1000 rpm and the speed can be regulated from an electronic control panel on the machine. Control of speed is important on higher capacity stirrers like this one so there is a high-speed limiter (Speedsafe) and a VCO cut out device to prevent acceleration if the load is removed from the plate. Not only that but anautomatic feedback maintains the selected speed electronically when the load or viscosity of the fluid changes. The unit is supplied with magnetic stir bar, 115 VAC power supply, 316 stainless steel cover. (Also available, the cheaper HI300N-1 which can stir up to 2.5 liters).

#2 HJ-1 Magnetic Stirrer for use with Magnetic Stir Bars 2400 rpm

HJ-1 Magnetic Stirrer

Runner up in the stirrers section is the HJ-1 Magnetic Stirrer for use with Magnetic Stir Bars 2400 rpm, this solid, sturdy unit that runs very quietly. Manufactured to industrial standard, this is a very high quality stir plate. Equally at home for use in making yeast starters for home brewery or in universities, or for scientific research – disease control, environmental protection and medical treatment. The manufacturer states that capacity is 1 liter but that is somewhat underrated as users have reported up to 2 liter flasks stirring perfectly and still having power in reserve. It is supplied with a magnetic stir rod so no need to buy one separately. This is a very powerful magnetic stirrer, this is a quality mixer for the price. Input Power 110v – 120v AC, rotating Speed 0-2400 rpm (stepless).

 

#1 Hanna Instruments HI 190M-1 Magnetic Mini-Stirrer with Speedsafe, 110/115 V Power Supply

Hanna-Instruments-HI 190M-1Our top pick is the Hanna Instruments HI 190M-1, a real value for money piece of kit, sturdy and well built. It is used in a variety of light duty industrial, laboratory and home applications by professionals, students, researchers and hobbyists for stirring liquids and solutions in food and beverage, chemistry and pulp and paper to name a few. The magnetic mini stirrer has a speed range of 100 – 1000 rpm and is supplied complete with magnetic mini-stir bar. The unit can handle up to 1 liter (0.26 gal) and is powered from a 110/115V power supply. Safety features include a built-in mechanism to limit speed to 1000 prm, this works whether or not the sample cotainer is there. The stirrer comes with an ABS plastic cover and has a one-year warranty.

The purpose of microscopes in general is to enhance resolution, this can apply to an object or image under the scope. A stereo microscope (also known as a dissecting microscope) uses two separate optical paths to give different viewing angles to the left and right eye, resulting in a 3D image of the sample. This type of image is essential for a wide range of industries including watch-making, electronic circuit boards, dissection and microsurgery, the medical industry. Stereo microscopes are also widely used in engineering, biology and forensics.
Other types of microscope available are digital, which use a monitor to display the image rather than looking through a lens and the compound microscope, which use a “compound” optical system consisting of an eyepiece and objective lens.

There are a wide range and variety of features and specifications across our choices, so you are sure to find something that suits you. The following are our top 5 currently available on Amazon.

Let’s start with #5…

#5 AmScope SM-3BZ-80S 3.5X-90X Boom Stand Binocular Zoom Stereo Microscope on Boom + 80 LED Light

AmScope SM-3BZ-80SOur first choice is the AmScope SM-3BZ-80S Binocular Zoom Stereo Microscope with 3.5X-90X Boom Stand and is priced towards the middle end of the price spectrum. It represents excellent value for money, being heavily discounted at less than a third of its retail value of $1600. This microscope has some great features and its 3.5X-90X continuous zoom power is more than most instruments in the same price range. It has a super widefield of view (2-1/2″ 65mm) and high resolution, with sharp, clear images and a large 26:1 zoom range. Illumination is provided by 60 LEDs and is bright and even as well as being surprisingly cool. The microscope is perfect for use in the electronics and semiconductor industries as well as engravers, scientists and researchers.

 

#4 AmScope SE306R-AZ-E2 20X-40X-80X Digital Binocular Stereo Microscope with Top & Bottom Dual Light Illumination System 2.0MP USB Imager Digital Camera

AmScope SE306R-AZ-E2
Our next pick is the AmScope SE306R-AZ-E2 20X-40X-80X Digital Binocular Stereo Microscope. It offers a broad field of view with high resolution and good depth and has a special feature in that it comes complete with a 2 Megapixel digital camera (USB). As well as taking still images, the camera can stream video onto a computer (Mac/Windows). Magnification power setting is adjustable between three settings, 20X, 40X and 80X and there is a choice of illuminating the object from the top (incident) for three-dimensional objects or bottom (transmitted) for viewing slides. This is a highly versatile stereo microscope which is great for examining any 3D object, from electronic components, plants, rocks and insects to jewelry and coins and stamps. Whilst being perfect for use in the geology, archaeology, forestry and biology industries it is also highly suilable for use in schools and hospitals.

 

#3 Celestron 44202 Advanced Stereo Microscope

Celestron-44202Next up is the Celestron Advanced Stereo Microscope which has the power to create incredibly realistic three dimensional images. This awesome piece of equipment uses two distinct light paths and two eyepieces to achieve amazing images in life-like 3D. This machine is for the advanced low power user but at a price that will suit most budgets and comes complete with two 10x wide field eyepieces giving 20mm field of view, as well as both 2X and 4X object lenses. Magnification options are 20X and 40X power and there is both top and bottom illumination from the halogen lights. The viewing head lets you view in any position thanks to its 360 degree rotation and the binocular head is inclined for maximum comfort. Again this scope has a wide variety of uses, including being excellent for die making, watchmaking, engraving, jewelry making/repairing, stamps and coin collectors/dealers, students and scientists.

 

#2 AmScope SE400-Z 10X-20X Widefield Binocular Inspection Stereo Microscope on Boom Arm Stand

AmScope SE400-ZThe AmScope SE400-Z has proved to be one of the most popular stereo microscopes on the market and ranks very highly in terms of customer satisfaction. Although a more basic instrument than some others in the review, this scope is ideal for use in industries like soldering, dental services and circuit board repair. Magnification levels of 10X and 20X are achieved through two sets of widefield eyepieces and one objective lens and the instrument can be adjusted to suit veariations in the eye. The user will have a comfortable experience in using the SE400-Z as it is set at the optimum 45 degree angle and has rubber eye guards to help prevent any eye strain. X- and Z-axis adjustment is provided by the head, mounted on a 12″ boom-arm stand and there is a 9″ working distance.

 

#1 AmScope SE306R-PZ 20x 40x 80x Home School Student Dissecting Binocular Stereo Microscope with Incident and Transmitted Dual Light Illumination System

AmScope SE306R-PZ
Our number one selection is another AmScope model, the binocular pillar-stand SE306R-PZ. This dissecting binocular stereo microscope has three levels of magnification power – 20X, 40X and 80X and has both top and bottom illumination. The top (incident) lighting is used when you need the light to be shining down on a three dimensional object being viewed and the bottom ( transmitted) light is used for viewing slides on the stage plate. It is equally perfect for home school student use as it is in the many industrial and eductional environments it is used in. Its ability to examine the surface details of a wide range of materials such as metal, solder, semiconductor, wood and stone makes it an unbeatable choice for jewelers, watchmakers, engravers as well as schools, colleges and hospitals. This is a high quality microscope at a very affordable price and comes brand new and factory sealed in the box.

Some of the terms used in the above reviews are:
Binocular – two eyepieces
Magnification – Size of an image
Resolution – Image clarity (determined by field of view / numerical aperture / working distance)
Fixed focus – Fixed distance between lens and image
LED / Fluorescent / Mirror / Halogen – Light sources for control of image viewing

Scales are instruments used for measuring weight, whilst balances are used to measure an object’s mass. The main difference is in accuracy, balances are more precise than scales and analytical balances can measure highly accurately to 0.0001g. There are many different uses for scales and balances and each application has a type of scales best suited to it, this review concentrates on use in labs and small industrial premises. They range from very cheap handheld models right up to highly accurate state of the art machines with outputs to computer software. The measurement technique also varies widely depending on the use, from balance beams and springs to highly sophisticated electronics.

The following are the top 5 best scales and balances available to buy on Amazon in 2014:

Starting with #5…

#5 Adam Equipment HCB Highland Portable Precision Balance

Highland HCBFirst up we feature the Highland HCB range of precision balances from Adam Equipment which offers high precision without a premium price to match it. These are available in a wide range of sizes, from the HCB 123 with its 120g capacity and a readability of 0.001g, up to the HCB 3001 which has a capacity of 3000g and 0.1g readability. This conventional balance has a two second settling time giving less unproductive time and an automatic internal calibration system. Backlit digital LCD display makes it readable in all conditions. A hook is suspended below the HCB to suspend items that are too bulky for the 120mm stainless steel plate. To prevent accidental damage to the weighing cell and balance from over weight samples, an overload protection is also built in. Data can be transferred easily to printers and computers though the RS232 and USB slots. Mains AC or battery powered through an integrated rechargeable battery (up to 24 hour use). ABS plastic housing. Built-in security slot. Accessories available include: ATP Thermal Printer, Adam Data Collection Program, RS-232 to PC cable, USB cable.

 

#4 Ohaus 8004-PN Pull Type Spring Scale, 4.5lb/20n Capacity, 1lb/0.5n Readability

Ohaus 8004-PNOur next choice is the Ohaus 8004-PN pull-type spring scale, which If you are looking for ease of use at a rock-bottom price, combined with excellence in manufacture from one of the world’s leading brands, is definitely the one for you. Ideal for use in a range of applications from science projects to measuring torque in-situ where the component can’t be easily moved and put on a fixed set of scales. Also great for any other hand-held application. Reading in pounds (lb) / grams (g) /ounces (oz) or Newtons (N) force. Capacity up to 4.5 pounds (2000 grams). The product is of sturdy construction with ABS plastic housing and metal face plate, spring and hook and pointer action.

 

#3 Intel-Lab Lab Balance 320 g X 0.001 g, RS232, Rear display,NEW

Intel-Lab Lab Balance

The Intell-Lab PMW-320 range of balances have been developed for simple weighing applications and their design is hard to fault. They are designed with simplicity and ease of use as a main priority with the large backlit LCD display a stand-out feature, providing a impressive easy to read screen which is visible in all lighting conditions including bright sunlight. Ideal for use throughout a wide range of industries with flexible weighing suited to many disciplines. Along with the display the ease of use is carried through to the large user-friendly menu. Communication with peripheral devices is easy via the configurable RS232 port which allows the user to interface with printers, hanheld readers or laptops/PCs. 320 gram maximum weighing capacity and readout is to 0.001 gram making this a highly accurate device.

 

#2 DE-938 Pocket Scale 500g Max Weight / 0.01g Accuracy Auto Shut off LCD Backlit Screen g oz T gn ozt dwt ct

DE-938 Pocket Scale

Our second top selection is the Duda DE-938, these pocket scales are lightweight and extremely portable at only 5 ounces, making them ideal for any application where you need to have scales ready all the time and you want to have a set handy in your pocket. Weighing capacity is up to 500g (half a kilogram) and accuracy of the instrument is very impressive, within 0.1 gram. The LCD Backlit Screen runs off 2 x AAA batteries which come supplied and has an auto-shut off feature. You can set the scales to choose from various measurement units including grams, ounces, carat, grain, pennyweight and troy ounces. This is a great pick if you are looking for very inexpensive pocket scales.

 

#1 Ohaus 750-S0 Triple Beam Mechanical Balance with Stainless Steel Plate, 610g Capacity, 0.1g Readability

Ohaus 750Our top pick is the Ohaus 750-S0 Triple Beam Mechanical Balance, an excellent choice for all small scale counter-top applications like weighing ingredients and powder, science labs or for eductional departments. The triple beam design gives unparalleled accuracy in measurement and the simple technology of these balance scales means that they will last a lifetime and never break down. The beams are notched and tiered and have a centre reading and the balance is magnetically dampened so that weighing is quick and the zero adjust compensator is spring loaded. Ohaus is just about the most respected name in weighing aparatus so you can be sure that this product delivers on precision, accuracy and durability.