The Digital Electric PH Meter LCD Tester is a compact and reliable tool for measuring the pH levels of water in hydroponics aquariums and other outdoor living applications. With a measure range of 0.00-14.00pH and an accuracy of ±0.05pH, this meter provides accurate and precise readings. It is powered by 2 * 1.5V LR44 batteries and features automatic calibration for convenience. The LCD digital display allows for easy viewing of the results, making it a must-have for maintaining optimal water pH levels in various gardening and outdoor environments.