- High-Quality Construction : Crafted from durable ABS material, this digital water tester is built to withstand daily use. Its hydrogen measuring pen is sturdy and resistant to damage. The backlit LCD display ensures easy reading in low-light conditions. - Precision Measurement : Utilizing advanced production technology, the hydrogen measuring pen features a highly sensitive probe that delivers accurate readings. The detachable probe design allows for straightforward operation, making it user-friendly for everyone. - Versatile Applications : This professional water quality tester is ideal for various environments. It's perfect for swimming pool testing, hydroponic food systems, aquariums, gardening activities, laboratory use, water purification, and monitoring pond conditions. - Accurate Parameters : The hydrogen measurement range spans from 0 to 2400 ppb and 0 to 2.400 ppm, with high accuracy of ±10 ppb and ±0.01 ppm. Temperature measurement ranges from 0.1 to 60.0℃ (32.0 to 140℉) with a precision of ±0.5℃. It offers a resolution of 2 ppb and 0.002 ppm, making it an excellent choice for evaluating drinking water quality. - Ideal for Home and Lab Use : Whether you're ensuring the safety of your drinking water at home or conducting scientific experiments in a lab, this tester provides the reliability and functionality you need to obtain precise water quality measurements.