A pH meter is an electronic device used for measuring the acidity or alkalinity (pH) of a liquid. The pH reading itself is on the “pH scale” from 1 to 14, with 1 being the highest acidity and 14 being the maximum alkilinity. The neutral point – or zero pH – is 7. A pH meter consists of an electronic meter with a special glass measuring probe connected to it, it measures the pH and gives the the reading on an LCD display. pH meters generally require to be calibrated using control solutions which have precise pH values. There are many uses for the pH meter, both scientific and industrial, as well as normal everyday household applications. These include: Fish ponds (koi carp), plants and gardens, swimming pools, soil analysis, home-brewing, home winemaking, testing well water, testing chemical baths, hydroponic gardening, cheese making, spa baths, drinking water, foodstuffs.

Here we have the best five pH meters currently available on

Starting with #5…

#5 HORIBA LAQUAtwin 3200456563 Model B-713 Compact pH Meter


First for review is our fifth place choice, the HORIBA LAQUAtwin 3200456563 Model B-713 Compact pH Meter, that to be honest is not for everybody due to being a bit more expensive than some of the meters on the marketplace. However if you need really fast accurate pH measurement in a just seconds, this is regarded by many as the best compact pH meter available. It measures pH samples in water, soil, plants, food and more from as little as a single drop of sample – all at the touch of a button. Easy to calibrate, user-selectable for either one or two point calibration. With Horiba you know you are buying a quality, well designed product and it is easy to use, accurate and stable as well as being able to be stored dry.


#4 Milwaukee Instruments Waterproof pH Tester


Our second choice is from Milwaukee Instruments and is a waterproof pH meter. This is a great meter if you are not particularly technical due to its quick and easy configuration and you’ll find that is is compact and easy to store. For peace of mind though, the customer service guys at Milwaukee Instruments are superb and if you have any problem at all, just pick up the phone and you’ll be right through to an expert. This meter is ideal for domestic uses including testing the pH in plant soil, drinking water and home brewing and comes with 20ml sachets of ph 4.01 and 7.01 calibration solution. Batteries ARE included and there is a very reassuring 2 year manufacturer warranty.


#3 Hanna Instruments HI98128 pHep 5 pH/Temperature Tester


Next up we rate the Hanna Instruments pHep®5 portable pH/Temperature tester, a compact tester which is used in industrial and laboratory applications. This meter is recommended if you need the highest degree of accuracy at a budget cost. The clear dual-level LCD screen shows both the pH measurement and the current temperature simultaneously and is waterproof and designed to float. Packed with features including: ATC (automatic temperature compensation), automatic pH calibration, user selectable automatic shut-off, hold function, dual temperature scales °C or °F, BEPS, replacable pH electrode cartridge, stability indicator.

The unit comes supplied with pH electrode, electrode removal tool, batteries and instructions. Can be used in very hot and very cold environments -5 to 50°C (23 to 122°F) Range: pH -2.00 to 16.00 pH (resolution: 0.01 pH) Temperature: -5.0 to 60.0°C / 23.0 to 140.0°F (resolution: 0.1°C / 0.1°F)

Accuracy @ 20°C: pH ±0.05 pH, temperature ±0.5°C / ±1°F