Thermo Scientific Orion Versa Star Pro pH/Conductivity Multiparameter Benchtop Meter

Thermo Scientific Orion Versa Star Pro pH/Conductivity Multiparameter Benchtop Meter. Water quality parameters are read together because they only mean something together.

Why one instrument

pH decides how toxic a given ammonia reading is. Temperature decides how much oxygen the water can hold. Conductivity says whether the sample is the one you think it is. Read on three instruments at three moments, these become three unrelated numbers; read on one, at one moment, from one sample, they become a description of the water.

Benchtop or portable

A benchtop meter has mains power, a large display, a stand for the electrode and room for a printer or a computer link — it is the right instrument where samples come to the laboratory. A portable meter is sealed, battery powered and built to be dropped; it is the right instrument where the laboratory goes to the sample. Almost nobody is well served by using one as the other.

Where it is used

• environmental and water quality laboratories
• wastewater treatment control
• field survey programmes
• food and beverage production

Practical note

A multiparameter meter simplifies the carrying, not the upkeep: every electrode on it still ages, calibrates and fails on its own schedule.

Supplied in one model.