HM Digital TRM-1: Triple Inline TDS Monitor

Three sensor TDS monitor that is ideal for checking TDS levels at 3 points, such as with DI/RO (deionization / reverse osmosis), or multiple points in an RO system, and more. FEATURES Displays TDS levels of the three sensing points with electrode probes.Highly efficient and accurate due to its advanced microprocessor technology.Auto-Off function conserves battery power. The unit shuts off automatically after 10 minutes of non-use.Dual Range 0-9990 ppm (From 0 - 999 ppm the resolution is 1 ppm. From 1000 to 9990 ppm, the resolution is 10 ppm, indicated by a blinking 'x10' image.)Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver.Comes equipped with mURLOCK Quick-Connect T-fittings as shown.Installs quickly and easily. SPECIFICATIONS Range: 0-9990 ppmAccuracy: 2%Cable Length: 24.5" (including sensor) Fittings: 1/4" standard, also available with 3/8"Power source: 2 x 1.5V button cell batteries (included)Battery life: approx. 1000 hours of continuous useSize: 7.6 x 2 x 4.7 cm (3 x .8 x 1.9 in.)Weight: 79.4 g (2.8 oz.)