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Products Residential Whole-House Indoor Air Quality Solutions and Oil Filter Products

GFX3 Automatic Digital Humidistat

GFI#: 7050
Price: $182.69

Diagrams and Brochures



  • Voltage:  18-30 VAC, 60 Hz
  • Switching load:  1 amp maximum 30 volt
  • Dimensions (inches):  3 3/4 H x 31/2  W
  • Outdoor Sensor Length (feet/meters):  200 / 61
  • Accuracy:  RH (77°F/25°C) 10%-90% +/-3%RH
  • Accuracy drift per year:  +/- 0.5%RH
  • Accuracy indoor temperature:  +/- 2°F / -1°C
  • Relay close:  setting -1%RH
  • Relay open:  setting =1%RH
  • Auto mode:
    • Control range:  10% - 60%RH
  • Manual mode:
    • Control range:  10% - 75%RH
  • Warranty (years):  1


  • Automatically adjust your humidity level by reading outdoor temperatures when you install the included Outdoor Sensor.  
  • OR, control your humidity levels manually! Simply don't install the Outdoor Sensor!
  • Features easy-to-read and understand LCD Readout Display!
  • You can calibrate the GFX3 in the field to match existing appliances in the home!
  • The GFX3 is of the most accurate in the market:  RH (77°F, 25C) 10%-90%±3%RH.
  • Mount the GFX3 on in the wall or directly in your duct.  The GFX3 reads humidity levels accurately no matter the installation, due to extensive venting that more accurately samples the room's air.
  • The GFX3 boasts an extended humidity range:  from 10% to 75%.  That means the GFX3 is ideal for humidors or wine cellars, and for older turn-of-the century homes in Northern climates alike!
  • No special wiring is required to install the GFX3.  Use any wire you may have in your truck and the GFX3 will perform as promised!

Video Support

  1. Installing the GFX3

GeneralAire® offers a wide variety of residential whole-house indoor air quality solutions using the latest in indoor air technology.

Installed in your home's HVAC system by a qualified HVAC contractor, GeneralAire® IAQ products protect you and your family by ensuring clean, healthy and comfortable indoor air quality throughout your home.

GFX3 Automatic Digital Humidistat - Indoor Air Quality: Oil Filters & Ventilators | General Filters - filter-example
  • Professional Installation Only
  • Not Sold In Retail Outlets
  • Sold Only by Approved Wholesalers
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