Features: High Accuracy: This 3-in-1 water tester uses a food-grade stainless steel probe and Automatic Temperature Compensation to read the temperature instantly to ensure that the water tester reads accurately at various temperatures. Easy to use: press the switch, put the test pen into the water to be tested, the lower the value, the lower the total dissolved content in the water, and the purer the water quality Automatic temperature compensation: automatic temperature compensation, which can ensure accuracy in the case of temperature changes. Auto Shutoff and Lockout Function: The tester has a data hold function, which locks your readings, making them easy to record. MULTI-PURPOSE: This water quality tester can help you know the water quality of drinking water, bath water, glass of salt water, swimming pool, etc. It also helps you get a clear picture of your hydroponic setup, garden soils, and more. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Size: 15.2*3cm Battery type: 3V CR2032 button battery Test range: 09999PPM Conductivity test range: 0-9990US/CM Temperature test range: 0.1°C80.0°C Measurement accuracy: ±2 Test items: value test, conductivity test, temperature test Application: It is used as an inspection tool for drinking water quality in water industry, drinking water industry, family, home travel, field work, etc. Influencing factors: Water temperature: testing pens cannot be used to measure high-temperature water bodies for example: hot boiling water Water speed: the testing pen cannot be used to measure water bodies with large sloshing Region: Each region and city has different values due to different pipelines and water sources Maintenance: keep the electrode clean and cover the electrode protective cover. If it is not used for a long time, please take out the battery Package List: 1 x Digital Water Quality Tester