【7-in-1 pH Tester Digital】Water tester multi-function one-key switching,which is more worry-free and convenient to use.pH meter tester digital professional measurement ORP Meter/S.G Meter/TDS Meter/Salinity Tester/pH Meter/EC Meter/Temp. 【pH Meter】The pH tester digital mainly detects the pH value of liquids.Water that is too acidic or alkaline can adversely affect the health of humans or pet fish. 【APP Control pH meter】pH tester digital accurate real-time Bluetooth data transmission and clear measured values make it easy for you to save,manage and share water ph tester of test data without worrying about data loss. 【Family Essentials】Tds meter as a tool to improve the quality of life.pH meter for water mini size,Lightweight and portable size allows you to take it around easily in your pocket and do your measuring anywhere. Basically all the environments that need to test PH value can use this tester to get accurate data.The ph meter for water can be applied to food,drinking water,wine,pool,aquarium.pet fish supplies,RO system, spa or hydroponics aquaculture.