HM DIGITALPremier Water Testing InstrumentsINDIAFind a distributor 
DM-3
HM Digital · Monitors
DM-3: Commercial In-Line Dual EC/TDS Monitor
The DM-3 is a commercial-grade EC/TDS monitor measuring EC/TDS feed (input) water vs. product (output) water of a water filtration system at any time. DM-3 has a large backlit screen that you will be able to see the readings in dark environments. With its shielded cables and diagnostic messaging this robust device is ideal for Reverse Osmosis (RO), Deionized water (DI) filtration systems that work well in applications such as drinking or potable water, Water treatment, Aquariums, Hydroponics, and many more
- Highly efficient and accurate due to its advanced microprocessor technology
- Displays TDS levels of the Feed Water and Product Water with in & out electrode probes
- Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. The DM-3 features digital calibration
- Diagnostic error messaging
- Shielded sensor cables
Technical data
Product specifications.
Specifications shown are based on current official HM Digital product information.
- Range
- EC: 0~9999μS/0~9.99mS / TDS: 0~5000ppm/ 0~5ppt
- Resolution
- EC: / 0.1μS (0~99.9) / 1μS (100~999) / 10μS (1000~9990) / 0.01mS (0.00~9.99) / TDS: / 0.1ppm (0~99.9) / 1ppm (100~999) / 10ppm (1000~5000) / 0.01 ppt (0.00~5.00)
- Accuracy
- ±2%
- Conversion Factor
- NaCl (avg. 0.5)
- Cable Length
- 1.2m /3.9ft, shielded cables
- Sensor
- Dual, 1/4″ diameter for quick-connect fittings
- Digital Calibration
- Digitally factory calibrated to NaCl 342 ppm. Re-calibration can be done separately for each line.
- Power Source
- 2 x AA batteries (included)
- Size
- 11.6 x 1.9 x 7.0 cm (4.6 x 0.7 x 2.8 in)
- Weight
- 225 g (7.9 oz.)
Support for DM-3
Documentation and local assistance.
View product documentation here or contact an authorised India distributor for selection, availability and sales enquiries.