Combines a pH meter with a chemical dosing pump in order to maintain a desired set point in process applications. Hanna Instruments™ pH Controller and Dosing Pump provides two advanced instruments in one compact unit.

Simplicity with Oakton™ reliability

Reliably measure pH, mV, ORP and temperature with the Thermo Scientific™ Orion™ Star A211 pH Benchtop Meter for advanced lab analysis and printer or computer interfacing

Compact, with large dual-display LCD

Versatile, compact design works in a field or laboratory setting.

Provides the essential functions needed for routine pH measurements without complicated features and processes at a budget-friendly price

550 portable pH meter supplied in carry case with epoxy combination pH electrode, ATC probe and batteries. A small, lightweight general purpose pH meter offering 2 point pH calibration and automatic buffer recognition. Simultaneously displays both the temperature compensated pH readings and temperature.

A simple, easy-to-use lab pH meter for routine measurement with reproducible measuring results and increased measuring accuracy.

Take simple pH, mV and temperature measurements with the Thermo Scientific™ Orion™ Star A111 Benchtop pH Meter with easy operation for basic lab testing

Accurate measurements any time, anywhere

570 portable pH, mV meter supplied in carry case with epoxy combination pH electrode, ATC probe and batteries. Is a general purpose pH, mV and temperature meter with an integrated rubber seal to ensure that it’s completely waterproof. This model displays either temperature compensated pH readings or electrode potential and temperature.

Designed to provide laboratory precision under harsh environmental and industrial conditions. Hanna Instruments™ Waterproof Portable pH Meter is a rugged meter that offers many features and is supplied complete with meter, pH electrode, temperature probe and a plastic carrying case.

Compact, benchtop meter provides high quality pH/mV measurements with simple click of a button

Analyze your samples on-site with these portable meters. Analog TDS meters are easy-to-operate meters for municipal, commercial, and industrial water quality control, chemical concentration testing, and process control.

Reliably measure pH, mV, ORP and temperature with the Thermo Scientific™ Orion™ Star A221 pH Portable Meter for advanced field analysis and printer or computer interfacing

Take simple pH and temperature measurements with the Thermo Scientific™ Orion™ Star A121 Portable pH Meter with easy operation for basic field testing.

Get premium performance and ultimate flexibility with the Thermo Scientific™ Orion™ Versa Star Pro™ Meter with pH / LogR Module for pH, mV, ORP and LogR temperature technology

Get premium performance and ultimate flexibility with the Thermo Scientific™ Orion™ Versa Star Pro™ Meter with pH Module for pH, mV, ORP and temperature on customizable color display

Measures Conductivity, Salinity, TDS and Temperature. The SD 300 series is a range of waterproof hand-held meters for drinking water, cooling and boiler water, waste water, pool water and surface water applications.

Accurate measurements any time, anywhere

Accurate measurements any time, anywhere

Accurate measurements any time, anywhere

Easy to clean and prevents solids from collecting on the sensor. Hanna Instruments™ Plating pH Portable Meter is a pre-amplified, double junction pH probe with a recessed flat tip. The titanium body functions as a potential matching pin for increased stability and extended sensor life.

Compact, benchtop meter provides high quality pH/mV measurements with simple click of a button

For use with virtually any electrode that shares same connector

Portable meter provides reliable and high quality pH/mV measurements with simple click of a button

Intuitive touchscreen operation and high measurement performance combined with a complete security package for safe results and solid compliance. Mettler Toledo SevenExcellence S400 pH/mV Meter is a single-channel instrument which is modularly expandable with additional measurement parameters at any time — conductivity, ion or dissolved oxygen.

Features a replaceable electrode and renewable reference junction. Hanna Instruments™ Champ™ Pocket Sized pH Meter can be calibrated at one point by the user, simply acting on the calibration trimmer.