HM Digital DM-3: In-Line TDS Meter
The HM Digital DM-3 is an in-line TDS monitor that displays feed and product water TDS levels using electrode probes. It features digital calibration, auto-off functionality, and factory calibration.
- The description claims the meter measures from 0-999 PPM with a resolution of 1 PPM and from 1000 to 9990 PPM with a resolution of 10 PPM increments.
- The description claims the unit has a longer battery life of 2 years and an auto-shutoff time of 3 minutes.