Best Humidity Sensing Fan Switch

Homewerks 7136-02HW Bathroom Vent Fan with Automatic Humidity Sensor and Powerful Exhaust Ventilation Fan for Large Room 140 CFM Whisper Quiet 1.0 Sone Energy Star

Sensor switch detects excess humidity and automatically turns the ventilation fan on.
perfect for high humidity locations such as the bathroom, laundry room, basement, etc..
Humidity control switch turns fan ON automatically when moisture levels exceed preset level and turns it OFF after levels drop.
Humidity sensor features three levels to choose from (low, medium, high) to suit specific ventilation needs of the room.
features a manual ON/OFF switch to bypass the humidity sensor.

Fan's grill measures 11" x 13-3/4" and housing measures 10-7/8" in length x 9-3/8" in width x 7-7/8" in depth.
Operates at 80 CFM at a very quiet 1.0 scones.
Integrated humidstat senses when to turn fan on or off: when humidity level reaches preset level, the fan turns on.
when humidity level is below the preset level, the fan turns off.
Comes with 4" round plastic duct connector with damper for superior back draft protection, and side access panel makes for easy wiring without having to remove the interior components.
Fan is HVI-certified, UL-listed for safe installation over a tub or shower on a GFCI circuit, satisfies California Title 24 guidelines, meets ASHRAE 62.2 requirements and those of the ARRA, is CAL Green compliant and LEED for homes.
Energy Star humidity sensing bath fan with contoured grill.
80-CFM blower at 1.0-sone for quiet operation.
Exhaust capacity for rooms of approximately 75 to 100-square feet.
Easily install by using the included adjustable hanging brackets.

Sensor switch detects excess humidity and automatically turns the ventilation fan on.
perfect for high humidity locations such as the bathroom, laundry room, basement, etc..
Humidity control switch turns fan ON automatically when moisture levels exceed preset level and turns it OFF after levels drop.
Humidity sensor features three levels to choose from (low, medium, high) to suit specific ventilation needs of the room.
features a manual ON/OFF switch to bypass the humidity sensor.

HUMIDITY SENSING WALL CONTROL: Sensaire technology responds to increases in humidity rather than waiting for condensation to form or a relative humidity set point to be reached.
PRECISE SENSITIVITY ADJUSTMENT: Variable setting from 20% to 80% relative humidity so the fan works when the homeowner wants it to regardless of climate or season.
CONTINUOUS VENTILATION MODE: Operates fan for set minutes per hour to achieve targeted average CFM levels and efficiently meet ASHRAE 62.2 whole house mechanical ventilation (WHMV) requirements.
DECORATOR STYLE: Designed with settings behind concealed door blends in seamlessly with existing switches and décor.
USER-ADJUSTABLE: Delay shut-off timer allows run-time customization for different bathrooms within your home.

Sensor switch detects excess humidity and automatically turns the ventilation fan on.
perfect for high humidity locations such as the bathroom, laundry room, basement, etc..
Humidity control switch turns fan ON automatically when moisture levels exceed preset level and turns it OFF after levels drop.
Humidity sensor features three levels to choose from (low, medium, high) to suit specific ventilation needs of the room.
features a manual ON/OFF switch to bypass the humidity sensor.

Energy Star humidity sensing bath fan with contoured grill.
80-CFM blower at 0.3-sone for quiet operation.
Exhaust capacity for rooms of approximately 80-square feet.
Easily install by using the included adjustable hanging brackets.
80-CFM with an exhaust capacity of 75 to 100–square feet and a barely audible sound level of under 0.3-sones.
Features a contoured grill that almost disappears into the ceiling.
Integrated humidistat senses the humidity level of the room and turns the fan on until the humidity level is below the preset percentage.
Housing size of 12-7/8-Inch in width, 12-3/4-Inch in depth and 9-7/8-Inch in height.

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Very quiet bathroom fan (0.8 sones) and Strong air movement (110CFM) for bathroom up to 110 Sq. Ft. Recommened for use in large room.
Heavy housing size: 10.32 in x 10.32 in x 8.0 in with 6 in duct, ceiling mounting Opening: 10.8in x 10.5in.
Two operation options: 1. Manual mode-The RED LED indicator lights, the fan will run continuously in this mode. 2. Humidity sensing mode- The LED indicator light will be green. In this mode the fan will automatically turn on when the humidity level in the room is above 60%..
Low profile white grill cover, Perfect for the center spacing of 12-inch ceiling joists and It can attaching the fan Housing mounts to the ceiling joists (spacing between16 in.- 24 in) using suspension brackets..
UL and HVI certified for performance assurance.Acceptable for use over a bathtub or shower when installed in a GFCI-protected branch circuit..