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HM Digital FM-2 Filter Monitor with Volumizer

Posted on Tuesday, March 9th, 2010 at 2:50 pm by

The FM-2 Filter Monitor from HM Digital is an innovative device that will alert you when a filter needs to be changed on your RO/DI water purification system. The FM-2 Filter Monitor uses color-coded lights at the base of the faucet, and has 5 timers for a 5-stage system. This system also comes with water volumizer, and programmable set-points and alarms for each function. A neat auto-shut-off feature, will prolong battery life (2xAA included) as the unit will shut down 5 minutes after the water is turned on.


  • A five-stage filter monitor with five independent timers and a tri-color LED faucet indicator disc.
  • Counts time and volume for up to five stages (can be less).
  • The LED indicator disc will illuminate a green, yellow or red light when the water is turned on. The color indicates the percentage of elapsed time and volume used.
  • Auto-Off function conserves battery power. The unit shuts off automatically after 5 minutes of non-use.
  • The timer counts down in months or days (settings can be modified).
  • The volumizer counts up in gallons or liters (settings can be modified).
  • Includes an audible alarm (beep).
  • Modern design is perfect for any kitchen.
  • Installs easily.
  • Includes the FMS-2 flow sensor.

Timer Range: 0-999 days/months
Timer Modes: Days or months (default is months)
Volume Range: 0-99999 Gallons / Liters
Volume Modes: Gallons (default) or Liters
Volume Accuracy: +/-1% (at typical pressure of ~50-150 psi; low and high pressures may affect accuracy
Settings: One alert per stage, up to five stages
Default Setting: 12 months
Batteries: 2 x AA (included)
Battery Life: approx. 18 months
Base Unit Dimensions: 100 x 63 23 mm (4 x 2.5 x 0.9 in)
Base Unit Weight: 119 g (4.2 oz.) (including batteries)
Flow Sensor Cable Length: 93 cm (36.6 in)
Flow Sensor Fitting Size: 1/4″ Quick Connect
LED Faucet Indicator Disc: Works with any non-air gap filter faucet
LED Faucet Indicator Disc Cable Length: 92 cm (36.25 in)
LED Faucet Indicator Disc Dimensions: 4.75 (1 1/4″ in.) dia., 8 cm (5/16″) high

[via tb aquatics]

Felicia has been keeping aquariums since the early 90s and has a keen interest in taxonomy, aquaculture, and seahorses. she is the former Liveaquaria Diver's Den photographer and now works for Philadelphia area's largest aquarium specialty store The Hidden Reef.

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One Response to “HM Digital FM-2 Filter Monitor with Volumizer”

  1. Ora Corals says:

    cool little gizmo

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