High Accuracy TDS Meter Water Quality Tester Automatic Calibration Test Pen, 501 Original

High Precision TDS Meter Water Quality Tester Automatic Calibration 0-9990ppm Drinking Water Aquariums Conductivity TDS Test PenFeature:1. Ideal for testing applications, such as hydroponics and gardening, swimming pools and spas, aquariums and reef tanks, water ionizers, water filters. Drink water and so on.2. Measuring range: 0-9990 ppm, 1 ppm resolution, + /-2% reading accuracy.3. Automatic shutdown function-turn off the meter after 5 minutes of non-use to save batterySpecification:Material: ABSSize: 140*20*10mm/5.51*0.79*0.39\"Note: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. Thank you!Please allow 1-3mm measuring deviation due to manual measurement.1 X Water Quality Tester