Sensaire® technology detects rapid increases in moisture levels at the ceiling, where steam and humidity naturally rise. Regular humidistat's located on the wall simply detect absolute humidity levels and are prone to false triggers, or not operating when they should.

42W Fluorescent Light – included and 4W Nightlight (not included) 0.7 Sones 110 CFM Sensaire® technology detects the rapid rise in humidity over time Auto shut-off time is adjustable from 5 to 60 minutes Helps prevent lingering, excessive humidity which can cause mold Humidity is sensed at the ceiling where it is most prevalent Includes hanger bar system for fast and flexible installation in all types of construction UL Listed for use over bathtubs and showers when connected to a GFCI protected branch circuit 6” ducting for superior performance