HM Digital FLM-3 Flow Monitor


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HM Digital FLM-3 Flow Monitor

The HM Digital FLM-3 Flow Monitor checks and measures the flow rate of a water line. The innovative FLM-3 will alert when the flow rate exceeds a specific user-set limit. The battery-powered FLM-3 features an LCD display that will automatically shut off after 5 minutes.

User Manual


  • The compact design of the FLM-3 is perfect for under-the-sink or countertop systems.
  • The easy to install FLM-3 monitors flow rate in Litres per Minute or Gallons per Minute and tracks total litres or gallons used
  • A user can set a specific flow rate limit, and if the flow rate exceeds that limit an alarm will sound along with an icon that will appear on the large LCD display.
  • The FLM-3 is battery powered and includes two (2) 1.5V AA batteries.


Range: 0.8-8.0 LPM/0.2-2.1 GPM; 0-99999 g/l
Accuracy: +/- 10%
Resolution: 0.1 LPM/GPM; 1 g/l
Set Point: Fully programmable
Alarm: Beep
Fittings: 1/4” quick connect
Power Source: 2 x 1.5V AA batteries
Battery life: Approx. 18 months
Dimensions: 6.6 x 9.0 x 6.3 cm (2.6 x 3.5 x 2.5 in)
Weight: 207g (7.3 oz.)