Pocket Multiparameter Meter, Electric Conductivity Range 0 to 20 mS/cm, TDS Range 0 ppm to 10.00 ppt, Waterproof IP67, Automatic Temperature Compensation Yes, Displayed Temperature Range 32 Degrees to 122 Degrees F, Salinity Range 0 to 10 ppt, Display LCD, Auto Power Off Auto Power Off, Memory No, Temperature Compensation Range 0 Degrees to 50 Degrees C, Calibration 1 point, Interface No Interface, Power Source A76 Alkaline Batteries, Includes Batteries, Manufacturers Warranty Length 1 yr. This item has been restricted from sale in the following state (s): []