GoolRC 3 in 1 TDS EC Water Quality Test Meter Temperature Digital Display for Drinking Water Aquariums Pool Spa

3 in 1 TDS EC Water Quality Test Meter Temperature Digital Display for Drinking Water Aquariums Pool Spa Features: With locking function, it is easy to read and record, and the instrument will lock the reading; 5 minutes auto off function, battery will not run Water quality detection adopts large screen liquid crystal display, which is easy to read. Because of its advanced microprocessor technology, it is efficient and accurate. Support automatic temperature compensation, water quality detection can switch between TDS and conductivity. Automatic shutdown function: turn off the meter after 5 minutes without use, save battery. Small size, but suitable for testing pH balance of drinking water, swimming pool, aquarium, reverse osmosis system, spa or hydroponics. It can be used for water purifier and filter, food (vegetables, fruits) and beverage quality monitoring, swimming pool and hot spring, aquarium, hydroponics. Specifications: Measurement range: Conductivity: 0-9990us / cm TDS:0-9999ppm Celsius: 0.1-80.0 ? Fahrenheit: 32.0-176.0 Accuracy: ± 2% Net weight: 55g Size: 154 × 30 × 14 (mm) Package Size: 15.5*3.5*2.5cm Package Weight: 64g Package List: 1 * Water Quality Test 1 * Leather Bag 1 * User Manual Use steps Before use, please pull off the electrode protective sleeve; Press the on key and put the electrode into the solution to be tested; After the value is stable, press the hold key to take out the reading; After reading, press the on key, wipe the electrode clean and put the electrode protection sleeve in