【Multifunctional Water Quality Tester】 This digital pH tester is a multifunctional water quality pen that can measure pH, TDS, ec, salinity and temperature. This water quality detector is powerful, versatile and excellent performance. 【Accurate Measurement Results】This 5-in-1 portable digital pH meter features high performance, pen design, fast digital stability and accurate calculation results. Perfectly guaranteed water quality and safety. 【Lightweight & Portable】This high precision handheld pH meter adopts lightweight and portable design, convenient for indoor and outdoor use. Made of high quality material, very efficient and accurate. 【Large Clear Display Screen】This digital pH test pen has a large and clear display, easy to read the displayed value. This water quality tester is simple and convenient to use. 【Widely Applicable】This water quality pH measurement tool is applicable for garden, home, laboratory, farm, aquarium, etc. It has automatic temperature compensation function.