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™ ORPTestr™ 5 Waterproof Pocket Tester
Oakton™ ORPTestr™ 5 Waterproof Pocket Tester features a large easy-to-read LCD with a three-color backlight
Oakton™ EcoTestr™ Waterproof Pocket Testers
Oakton™ EcoTestr™ Waterproof Pocket Testers are designed to be durable and easy to use
Oakton™ CTSTestr™ 5 Waterproof Pocket Tester
Oakton™ CTSTestr™ 5 Waterproof Pocket Tester offers onductivity, salinity, and TDS testing all in one meter
Oakton™ Waterproof Big Display pHTestr™ 10 BNC
Pocket pH meter with large display; accepts pH combination electrode with BNC connector
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.
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.
Fisherbrand™ accumet™ Portable AP110 pH Meter
For accurate measurements anytime, anywhere.
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!
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.
Cole-Parmer Extech PH220-C Palm pH Meter with Cabled Electrode
Big Digit LCD display in rugged housing with choice of stick or cabled pH ElectrodeLarge LCD displays pH or mV and temperature simultaneouslyMicroprocessor provides for automatic buffer recognitionMemory stores 15 readingsAutomatic temperature compensation via Pt-100 sensor built into electrodeUnit is completely waterproof when electrode is
Cole-Parmer Extech PH110 ExStik Waterproof pH Meter; Refillable
Replacement electrodes, reagents, and other accessories for Extech instruments.