Feature 1、3 in 1: The 3 in 1 water quality tester allows for rapid measurement of hydrogen content, Cl levels, and water temperature, providing quick insights into water quality for ensuring the safety of your family's drinking water. 2、Benefits of Hydrogen Water: Hydrogen rich water offers various benefits such as antioxidant properties and anti aging effects, while CL refers to the CL content in water, high levels of CL can pose health risks. 3、High Sensitivity Electrode Probe: Equipped with a high sensitivity electrode probe, this meter ensures high accuracy in water quality testing, automatically compensates for temperature, reduces errors, and offers reliable and trustworthy usage. 4、Clear LCD Backlit Display: Featuring a high definition LCD backlit display, the tester shows clear numerical values for easy reading, automatically shuts off after 5 minutes, and is user friendly with simple operating. 5、Multiple Testing Modes: The digital water tester includes 3 different testing modes that can be switched by pressing the MODE/CAL key, with a mode memory function that defaults to the last mode used before shutdown. 6、ABS Construction: Made from premium ABS material, the water quality tester is wear proof and sturdy, with a battery cover featuring a sealed gasket design for excellent waterproof sealing and prolonged lifespan. Item Type: Water Quality Tester Material: ABS Weight: Approx. 131.00g/4.62oz Detection Range: Hydrogen, CL, Temperature Applicable Industries: Swimming Pools, Hot Springs, Water Plant Laboratories, Aquaculture Industry, Food Processing Plants, Others Size: Approx. 186mm/7.3in Battery: LR44 Battery x3 (Not Included) Waterproof Level: IP65 Operating Environment: 0 to 60°C (32.0 to 140.0°F) RH: Full Backlight: LCD Backlit Display Auto Power Off: 5 Minutes Display Mode: LCD Digital Display Calibration Way: Auto Calibration H₂ (Hydrogen): Measuring Range: 0 to 10000ppb (0.001 to 10.000ppb) Resolution: 2ppb (0.002ppb) Accuracy: ±10ppb, (±0.01ppb) Temperature Compensation: (0 to 60)℃ (Automatic) CL₂ (Cl): Measuring Range: 0.01 to 4.00ppm (Total Cl) Resolution: 0.01ppm Accuracy: ±10% of Reading, ±0.01ppm Temperature Compensation: (0 to 60)℃ (Automatic) TEMP (Temperature): Measuring Range: 0 to 60℃ Resolution: 0.1℃ Accuracy: ±0.1℃ Package List 1 x Water Quality Tester 1 x User Manual Note Maintenance: After the test is completed, shake off the water and keep the motor clean. If not in use for a long time, please remove the battery and cover the electrode protective sleeve.