1. Wide Usage PH Meter: Ph meter is an essential tool to improve your life quality. This digital ph tester can be applied in the following applications, drinking water quality test, swimming pools quality monitor, PH balance measurement in RO/DI system, aquarium, spa, hot tub, wine brewing, or hydroponics. 2. Three Display Designs for Salinity Test: PPM PPT %. For Swimming Pool Salt Test: 09999ppm; Seawater Test: 10200ppt (1ppt 1000ppm, when ppm figure is over 9999ppm, the meter automatically changes to ppt). For Food Test: 0.0125%. So you don't have to calculate complex salt content level numbers between different units, which help you to avoid calculating mistake and also makes resultreading easier for you. 3. Easy Operation for Salinity Test: When you want to use our pool salt tester, all you need to do is to turn the meter ON and click MODE button to shift to SALINITY function. This easy and convenient operation design is very considerate and premium experience. Wide Application Salinity Meter: Digital water salinity test meter applies for multiple uses, like salinity test for swimming pool, Koi Fish, Seawater, Aquariums Marine Monitoring. 4. Reliable TDS Meter With Accurate Quick Measurement: Digital pool water tester is equipped with premium quality titanium alloy probe, which enables quick and accurate water quality test. Our water quality tester is with 09999ppm 0200ppt wide test range ensures different function of usage. 5. Multiparameter water Test meter is equipped with 5 different functions for water quality test: Salinity TDS EC pH Temperature are combined perfectly in one meter. This is not only been convenient for your different water testing needs, but also saves your time and money, totally a helpful water test kit for your water quality