Benchtop Meter Kit pH Range -2 to 16 pH Electric Conductivity Range 2.01 to 20.00 mS/cm 20.1 to 200.0 mS/cm TDS Range 0 to 10.0 ppm 1.01 to 10.00 ppt 10.1 to 100.0 ppm 10.1 to 100.0 ppt 101 to 1000 ppm ORP Range -2000 to 2000 mV Dissolved Oxygen Range Not Applicable Automatic Temperature Compensation Yes Displayed Temperature Range -22 Degrees to 266 Degrees F -30 Degrees to 130 Degrees C Salinity Range 0 to 100 ppt Resistivity Range 0.0 ohm/cm to 20.0 megaohms/cm Display LCD