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Benchtop pH Meters

Instruments used to measure the acidity or alkalinity of a sample to a high degree of accuracy in a laboratory setting.

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METTLER TOLEDO™ SevenExcellence™ S400 Benchtop pH Meter

The S400 meter measures pH, redox/ORP, and ISFET. It can be expanded with additional modules to measure conductivity, resistivity, DO, BOD, ISE, salinity, and TDS. It has an intuitive touchscreen, the ability to create measurement shortcuts, and can export data to a printer, Excel, or LIMS system.

Accuracy (mV) ±0.1
Resolution (Conductivity) 0.001 to 1
Range (Conductivity) 0.001μS/cm to 2000mS/cm
Resolution (pH) 0.001, 0.01, 0.1
Range (pH) -2 to 20
Accuracy (pH) ±0.002
Display Type TFT
Resolution (mV) 0.1/1mV
Outputs USB, RS-232, Ethernet
Data Points 20,000
Calibration Points (pH) Max. 5 points, 8 pre-defined and 20 user-defined buffer group
Resolution (Temperature) 0.1°C
Temperature Range (Metric) -30°C to +130°C
Range (mV) -2000 to 2000
Accuracy (Temperature) ±0.1°C
Calibration Points (Conductivity) 13 pre-defined and 20 user-defined standard