Features: 1Conductivity tester small in size easy to carry simple to operate strong practicality. 2It can be used to measure the purity of water quality and make sure the cleanness of household water. 3Measurement range is 01999 S/cm and the electrode replacement is convenient and quick. 4High measurement accuracy and the higher the conductivity the more impurities in the water. 5Widely used in industry agriculture food medicine scientific research environmental protection and other fields. Specification: Condition: 100% Brand NewItem Type: Conductivity MeterMaterial: Plastic + ElectronicsWeight: Approx. 212g / 7.5ozProduct Size: Approx. 18x3.5x3.5cm / 7.1x1.4x1.4inBattery Parameters: Built-In 4 x LR44 Button BatteriesBattery Type: Button BatteryBattery Model: LR44Nominal Battery Capacity: 160mAhMeasuring Range: 0-1999 S/cmResolution: 1S/cmAutomatic Shutdown: 5 MinutesWorking Temperature: 0-50Application: Industry agriculture food medicine scientific research environmental protection and other fieldsFunction: Measure the purity of water quality such as whether there are heavy metals etc. The higher the conductivity the more impurities in the water Package List: 1 x Water Quality Tester1 x Chinese and English Manual Note: 1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. Please soak in clean water for 5‑10 minutes to activate the electrode before use.