"Suitable for drinking water, swimming pool, aquarium, reverse osmosis system, spa or hydroponics. Wide range of applications, quick measurement and simple operation, reliable to use. The water quality tester has a sensitive electrode sensor to read accurate values. High sensitivity probe for more accurate measurement, more convenient to use. Adopting high quality ABS material, which is corrosion resistant and durable in use. Feature: 1.Suitable for drinking water, swimming pool, aquarium, reverse osmosis system, spa or hydroponics. 2.Wide range of applications, quick measurement and simple operation, reliable to use. 3. The water quality tester has a sensitive electrode sensor to read accurate values. 4. sensitivity for more accurate measurement, more convenient to use. 5.Adopt u n High quality ABS material, corrosion resistant and durable in use. 6. Easy and convenient to use, very suitable for science experiments in children's schools. Specification: Condition: 100% Brand New Item Type: Water Quality Tester Material: ABS Conductivity: 0.055us/cm TDS: 0-1000ppm Celsius: 0.1-80.0 Fahrenheit: 32.0-176.0 Battery: 3 x 1.5LR44 (included) Product size: approx. 159 x 34 x 16mm/6.3 x 1.3 x 0.6in Weight: Approx. 78g/2.8oz Package List: 1 x Water Quality Tester (Battery Included) 1 x User Manual"