【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 has excellent performance. 【Accurate Measurement Results】This 5-in-1 portable digital pH meter has high performance. pen design. fast digital stability and accurate calculation results. Guarantees perfect water quality and safety. 【Lightweight and Portable】This high-precision handheld pH meter has a lightweight and portable design. convenient for indoor and outdoor use. Made of high-quality material. highly efficient and accurate. 【Large Clear Display】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.