VEVOR TDS Meter, 0-9990 ppm Measuring Range, EC (Conductivity) /TDS (ppm) Multi-Parameter Measurement, Digital Water Tester with ATC, Clear VA Display Screen, for Drinking Water Quality TestingHigh-Accuracy MeasurementEasy OperationPremium MaterialsEasy to UseMultiple ApplicationsMultiple Styles AvailableATC: 32–140 ℉ / 0.1–60 ℃,Power Supply Type: LR44 Button Cell Battery,TDS: 0–9990 ppm,Color: Orange / Black,Testing Applications: General Water Use / Hydroponics,Item Model Number: A6,Product Dimensions: 1.6 x 1.6 x 7.2 in / 40 x 40 x 183.5 mm,Net Weight: 0.2 lbs / 0.1 kg,Main Material: ABS Plastic,EC: 0–9990 μS/cm,,Temp Range: 32–140 ℉ / 0.1–60 ℃