The Elite Pocket Tester is suitable for flexible dynamic electrochemical testing. Choose the Elite CTS model with a needle-type sensor, featuring a needle-type direct measurement sensor design for your application, to measure conductivity, total dissolved solids (TDS), salinity, and temperature. The Elite Pocket Tester is durable, equipped with a large backlit screen, one-touch calibration, and replaceable sensor heads. They are an ideal choice for beverage testing (including homemade beer and wine), food, hydroponics, aquaculture, aquariums, environmental monitoring, and more.