5 in 1 Multifunctional Digital Water Quality Monitor Tester Portable Pen Type EC S.G Salt Temperature Total Dissolved Solids Detector for Drinking WaterFeature:5 in 1 Multifunctional Water Quality Tester: It can be easily and quickly check the water quality of we, all dissolved solids, S.G, salt and temperature. 1.1 inch Display: With backlight, easy to read test data. High-precision probe: high efficiency, high reliability, accurate and fast measurement. Lightweight and compact: The easy-to-use digital water quality tester is portable. Wide range of applications: can be used in fishing, aquaculture, drinking water quality testing laboratories, swimming pools, aquariums and other fields. Specification:Material: ABS Profile:EC: 0-19990us/cm, 0-199.0ms/cmTotal Dissolved Solids: 0-9990ppm, 0-1990 pptSalt: 0-199.9ppt, 0-20.0%S.G: 1.000-1.400Temperature: 0-50°C (32-122°F)Resolution:EC: 1us/cm (lt; 1000us/cm), 10us/cm (gt; 1000us/cm), 0.1ms/cmTotal dissolved solids: 1ppm (lt; 1000ppm), 10ppm (gt; 1000ppm), 0.1ppmSalt: 1ppm (lt; 1000ppm), 10ppm (gt; 1000ppm), 0.1ppm, 0.01%Temperature: 0.1°c (0.2°f)Accuracy: EC, TDS, salt: ± 2% F.S; Temperature: ± 1.0°c (± 2.0°f)Power Supply: 1X3V CR2032 Button Battery (Not Included)Temperature Compensation: 0-50°C Working Temperature: 0-50°C Product Size: 155x30x1 6mm/6.1x1.18x0.63inNote:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Please allow 1-2cm measurement deviation due to manual measurement.1 * Water Quality Test Pen