Features 1、High Accuracy: Water quality tester pen meter not only ensures stable performance but also contributes to exceptional accuracy, making it a trustworthy water quality tester. It enables quick and accurate water quality test. 2、Multifunctional Design: 5 in 1 water quality tester can measure PH, SALT, TDS, EC, TEMP. Fulfill all your testing requirements, fully test water quality. This is a helpful water test kit for your water quality safety. 3、Easy to Read: Multi display on a single screen, allowing for simultaneous seeing of various water quality parameters. The screen displays 3 values at once, with pH and temperature fixed at the bottom. The upper section can be switched to display other values. 4、Convenient to Carry: Lightweight and portable design, allowing for water quality testing anytime and anywhere. This easy and convenient operating design is very considerate and offers premium experience. 5、Wide Application: PH meter is an essential tool to improve your life quality. Digital water test meter applies for multiple uses, suitable for swimming pool, seawater, aquariums, drinking water, or hydroponics. Specifications Item Type: Water Quality Tester Material: ABS Weight: Approx. 155.00g / 5.47oz Length: 183mm / 7.20in Battery: 4 x LR44 Battery (Battery Not Included) TEMP/PH CAL Key: Celsius/Fahrenheit Conversion Key, PH Calibration MODE/EC CAL Key: Function Switch/EC Calibration Key HOLD/ON/OFF Key: Data Hold, ON/OFF Key Wide Application: Food Saltiness, Aquaculture, Drinking Water, Laboratory, Swimming Pool, Aquarium And Other Water Quality Testing Package List 1 x Water Quality Tester 3 x Testing Calibration Pack 1 x Instruction Manual