Dual inline tds meter dm-1 hm digital
Measure the tap water coming in vs. the purified water going out of your water filtration system at any time.
Features:
- Displays TDS levels of the feed water and product water with in & out 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: HM meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver.
- Comes equipped with Mur-lok® Quick-Connect T-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" standard, also available with 3/8" or 1/2"
- Power source: 2 x 1.5V button cell batteries (included)
TDS = Total Dissolved Solids.



