OHAUS Starter Series Water Analysis Meters

OHAUS Starter Series will continue to elevate OHAUS to a direction that is truly Beyond Weighing!

OHAUS Starter 5000

High Performance Bench Meter for Universal pH Applications

Hamilton Company Laboratory pH Sensors

Laboratory sensors are used for many different applications and must show excellent accuracy and provide fast readings.

Series Models: FillTrode, FlushTrode

HANNA instruments Edge

edge™ is a single meter that can measure pH (HI2020), Conductivity, Dissolved Oxygen and is incredibly easy to use.

Series Models: pH, EC, DO

Hach Company HQd Series

HQd Digital Meters and IntelliCAL™ Probes

Series Models: HQ40d, HQ30d, HQ14d, HQ11d, HQ440D, HQ430D, HQ411d

Sensorex Calomel Free pH Electrodes

The performance of calomel electrodes is now available without the hazardous mercury associated with the design. The "Calomel Free" design features

Sensorex S150C

S150C(pH)Polycarbonate Body Electrodes

Sensorex pHASE pH Electrodes

Sensorex™ pHASE pH electrodes provide fast, accurate, stable pH measurements, even with large changes in the sample temperature. The built-in

Oakton ION 700

Large display allows you to see measurement values at a glance

Hach Company Φ 500 Series

Advanced technology matched with superior performance

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Questions for pH Meters


Is there an obvious reason why the keypad (buttons) would stop working. If I unplug it I can turn it on with the on/off button but then that button...

Seven multi pH expansion unit showing (----) while we keep in water

pH expansion unit was very slow whenever we keep inside the water. after some time time expansion uniot started showing blank with water and...

Erratic pH results

We have four radiometer analytical PHM210 pH meters, that have started to give erratic results. New probes and cables were fitted but didn't...

Switching from MTC to ATC?

How do you switch a sevenmulti from MTC to ATC?


Hi, could you please explain to me why if I'm reading a conductivity value over 30ms/cm I'm only getting 1 decimal. Same for >30us/cm...

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