Portable pH Meters
Instruments used to measure the acidity or alkalinity of a sample, and designed for portability and durability.
Portable pH meters are most often used away from the physical lab to measure the acidity or alkalinity of liquids in more remote locations.
A pH meter actually measures hydrogen-ion activity in water-based solutions. The liquid’s acidity or alkalinity is expressed as a pH unit. The pH scale ranges from 0 to 14, meaning a liquid with a pH below 7 is acidic and a pH above 7 is basic. A pH of 7 is considered neutral.
Also called electrochemistry meters, pH meters are potentiometric and determine the difference in electrical potential between the measuring electrode and a reference electrode.
Some portable pH meters accomplish routine tasks, often used to determine the pH of swimming pools and meet other commercial needs. These are sometimes called pH testers. Indicators or litmus papers can also be used to qualitatively measure pH.
Modern portable pH meters are typically digital and may detect more than pH. Some are equipped to measure specific ions, dissolved oxygen content, or conductivity.
Many portable pH meters are waterproof to protect against accidental dropping or adverse environmental conditions like rain or snow. Some electrodes are also equipped with longer cables to allow for submersion in a reservoir of water or other liquid.
Oakton™ pHTestr 50 Waterproof Pocket pH Tester
Oakton pHTestr 50 has a replaceable double junction sensor for longer life, an expanded number of applications, and easy maintenance. Versatile, compact design works in the field or laboratory
Oakton™ CTSTestr™ 5 Waterproof Pocket Tester
Oakton™ CTSTestr™ 5 Waterproof Pocket Tester offers onductivity, salinity, and TDS testing all in one meter
Thermo Scientific™ Orion Star™ A221 Portable pH Meter
Reliably measure pH, mV, ORP and temperature with our portable pH meter for advanced field analysis and printer or computer interfacing.
Thermo Scientific™ Orion™ Pro Star PH211 pH/ORP Bench Meter with Stand PROMO
Designed to provide accurate and reliable pH, ORP and temperature analysis, the Thermo Scientific™ Orion™ Pro Star PH211 bench meter is well suited for laboratories that desire a modern meter with advance performance.
Oakton™ EcoTestr™ Waterproof Pocket Testers
Oakton™ EcoTestr™ Waterproof Pocket Testers are designed to be durable and easy to use
Fisherbrand™ pH Pen
pH measurement is easier than ever with the Fisherbrand™ pH Pen™ – an economical range pocket-size tester designed for on-the-go pH measurements.
OHAUS™ Starter pH Pen Meters
Convenient pH testing. OHAUS Starter pH Pen Meters offer a convenient way to measure pH, or the relative acidity or alkalinity of a sample at a given temperature. The pH pen meters can be completely operated with just one hand, freeing up your other hand to handle samples.
OHAUS™ Starter Water Analysis Portable pH Meters
LCD meters combine portability with precise pH measurement.
Cole-Parmer™ Oakton™ EcoTestr™ pH 1 Waterproof Pocket Tester
Oakton™ EcoTestr™ pH 1 Waterproof Pocket Tester automatically recognizes pH buffer standards
Cole-Parmer Oakton pH 150 Waterproof Portable Meter with Single-Junction All-in-One Electrode
Rugged, accurate, reliable – Best value for an IP67-rated waterproof meter!
Fisherbrand™ accumet™ Portable AP110 pH Meter
For accurate measurements anytime, anywhere.
Cole-Parmer Oakton pH 6+ Handheld Meter with pH Probe
These meters are perfect for fast, accurate results. Automatic temperature compensation (ATC)ensures accuracy from 0 to 100°C. Meters include a protective rubber boot that also acts as a meter stand.
Andwin Scientific Checker pH Tester with Ph Electrode and Batteries, 0.00 to 14.00 pH, +/-0.2 pH Accuracy, 0.1 pH Resolution
The pH Checker series supplies users with fast and accurate readings from 0 to 14 pH with a resolution of 0.1 pH. This compact tester features an easy to read LCD and simple to perform two point calibration. The ph electrode of the checker can be easily replaced. You only need to unscrew the electrode from the meter body and screw on a new one. The Checker is fast, accurate, lightweight and with 3000 hours of battery life, you don't have to worry about frequent battery replacement. 0.00 to 14.00 pH range. 0.1 pH resolution. +/-0.2 pH accuracy. Calibration: manual, 2 points. Electrode: HI 1270 (included). Battery Type / Life: 1.5V (2) / approximately 3000 hours of continuous use. Environment: 0 to 50 degree C (32 to 122 degree F); RH max 95 percent. HI 1270 small diameter probe fits easily into a test tube. Measures 2-19/32" length by 2" width by 1" height. Weight: 1.8 oz without probe.
Andwin Scientific Checker Plus pH Tester + Gloves
The HI98100 Checker Plus is the NEXT GENERATION of the original Hanna Checker pH tester. The Checker is the most popular pH meter in the world with over 1 million meters used since its introduction in 1991. From entry-level growers to professional horticulturalists, the Checker has been helping people with their pH measurement as a meter that is simple to use and operate. The Checker Plus now offers automatic calibration to one or two points, automatic buffer recognition, calibrated buffer tags, stability indicator, low battery indicator, and selectable automatic shut off. Plastic Carrying Case - The HI98100 Checker Plus is supplied complete with meter, probe, calibration solutions and cleaning solutions packaged in a durable plastic carrying case.