Senno Dual TDS Meter

Senno Dual Tds Meter Dual in-line TDS Meter with tee quick connect fittings. Installs in 1 minute! Detection range is 0-999 ppm, sensitivity is 1 ppm, accuracy is + - 2%. Just push a button to get each reading. In RODI systems, we install it prior to and immediately after the DI filter. With The Push of a button, you know how well your membrane is performing and whether it is time to replace the DI resin. Select 2 points in water system for installing the inlet / outlet tee connectors. Just cut the 1/4 tubing and reconnect tubing with the tee provided. Press button to measure the TDS values of both inlet and outlet water. To repeat measurement press again. Reef keepers should select post membrane (pure) as inlet and post DI as outlet. Residential users should use tap water (inlet) and post membrane (pure) as outlet. Systems should be running and making water for a few minutes before testing. To conserve battery life this meter does not have a back light screen. Dimensions and Weight   Dimensions: 3.75" x 1.5"  Weighs: 4 ounces Illustrations/Diagrams/Instructions : Senno dual tds meter instructions  How to use Push In Quick Connect fittings