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Filter Minder® Electronic Pressure or Vacuum Sensors

Filter Minder® Low Pressure Sensor

Air Filter Restriction Monitoring Sensor

Continuous Monitoring | Direct Mount


How It Works

The Filter Minder® Low Pressure Sensor continuously monitors vacuum in the air induction system, reporting air filter restriction.  As vacuum or air filter restriction increases, the sensor gives a comparable voltage output range of 0.5 to 4.5 volts full scale. Air filter capacity used and remaining air filter service life can be determined throughout the entire life of the filter.

HVAC version available.

Filter Minder® Low Pressure Sensor




Mounts directly to air cleaner or air induction piping. Adapter fittings and grommets are available.  Brackets for remote mounting are also available.

3/8-24 Straight Thread O-Ring
M10x1 Straight Thread O-Ring
1/8-27 NPT

Special mounting and connectors available if annual volume warrants.

Contact Filter Minder®


  • Pressure or Vacuum Sensor (Gage Type)
  • Analog Output:  0.5Vdc to 4.5Vdc
  • Operating Temperature:  -40ºF to +257ºF (-40ºC to +125ºC )
  • Pressure Ranges:  0-40" H20 (0-10 kPa) or 0-5" H20 (0-125 mbar)
  • Accuracy:  2.5% FSO or 2.5% FSO @ 32ºF to +140ºF (0 to +60ºC) for 0-5" H20
  • Material:  Nylon
  • Electrical Connection:  AMPSEAL 16 (3 Way)


  • Length:  1.7" (44mm)
  • Diameter:  1.4" (35mm)


Click the link below for full specifications and dimension diagram.

Low Pressure Sensor Specifications

A Few of Many Industries Served

Air Filtration Markets Served


  • Variable output analog output
  • Small, lightweight profile with severe duty design
  • Resistent to under-hood chemicals
  • Protective input / outputs
  • Temperature compensated


  • Shows exact level of air filter restriction
  • Prevents over and under servicing of filters
  • Allows full use of filter capacity
  • Can provide key warranty information
  • Reduces operational costs for end-users