Water Quality Tester, 3-in-1 TDS Water Tester Conductivity Temperature Water Tester For Drinking WaterIntroducing the water quality tester, the ultimate solution to quench your thirst for clean and pure water.Specification Color: Blue, White Size: 1613cm/6.30.391.18inch Material: Plastic, Electronic Component Error: 2% Probe: Titanium Alloy Test Function: TDS, Conductivity, Temperature TDS Testing Range: 0-9990ppm Conductivity Testing Range: 0-9990S/cm Temperature Testing Range: 0.1-80/32-176 Battery: built-in 1pc 3V button cellPackage Contents 1pc x water quality testing penFriendly Tips 1.Please kindly allow 2-3% difference according to manual measurement 2.Please note that a slight color difference should be acceptable due to the light and screen. Thanks.Promise If the product has any quality problems, please feel free to contact us, we will help you solve the problem as quickly as possible.