HM Digital DM-2 Commercial In-Line Dual TDS Monitor, 0-9990 ppm Range, /- 2% Readout Accuracy zerowater Temperature Range: 34°F to 145°F

Temperature Range: 34°F to 145°F (1°C to 63°C)

It has become a favorite in such applications as hydroponics & gardening

To calibrate your pH meter

or can be used as a night light

a reading of above 006 is an indication to replace the water filters

HM Digital DM-2 Commercial In-Line Dual TDS Monitor, 0-9990 ppm Range, /- 2% Readout Accuracy zerowater Temperature Range: 34°F to 145°FDM 2: Commercial In Line Dual TDS Monitor The DM 2 is a commercial grade monitor measuring TDS feed (input) water vs. product (output) water of a water filtration system at any time. 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.