DM1 dual inline meter displays TDS levels 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. Can be recalibrated with mini-screwdriver. Includes two quick connect fittings designed to insert the probe in 1/4", 3/8", or 1/2" tubing.

FEATURES

• Displays TDS levels at two locations with in & out electrode probes.
• Highly efficient and accurate due to its advanced microprocessor technology.
• Auto-Off function turns unit off after 10 minutes of non use to conserve battery life.
• Dual Range 0-9990 ppm (From 0 - 999 ppm, reads in increments of 1 ppm. From 1000 to 9990 ppm, reads in increments of 10 ppm, indicated by a blinking 'x10' image.)
• Factory Calibrated: with a 342 ppm NaCl solution. Can be recalibrated with a mini-screwdriver.
• Includes two quick connect Tee fittings.
• Installs quickly and easily.

SPECIFICATIONS

Range: 0-9990 ppm
Accuracy: ±2%
Conversion Factor: NaCl (avg. 0.5)
Cable Length: 24.5" (including sensor)
Fittings: 1/4" 3/8" or 1/2".  Make your selection above based upon the outside diameter of your tubing.
Power source: 2 x 1.5V button cell batteries (LR44 or equivalent; included)
Battery life: approx. 1000 hours of continuous use
Size: 3 x .8 x 1.9 in.
Weight: 2.8 oz.