The Inline Dual TDS Meters DM-1 and DM-2 displays total dissolved solids of feed water and product water. Shuts off automatically after 10 minutes. Dual range 0-9990 ppm (from 0-999 ppm with resolution of 1 ppm; from 1000 to 9990 ppm resolution is 10 ppm). Factory calibrated with a 342 ppm NaCl solution. Meters can be recalibrated using mini-screwdriver. Includes two 1/4“John Guest fittings.
The DM-2 model features a stronger, water-resistant casing, larger display, longer waterproof shielded cables and a variable mounting bracket. Calibration can be done individually or simultaneously on each probe.
