The Energy Star-rated DS-2080 dehumidistat sensor controls bathroom exhaust fans based on moisture level in the room. The California Title 24-compliant surface-mounted wall control allows humidity settings to be adjusted from 20% to 80% relative humidity, with an 8% maximum relative humidity differential. The two-wire line voltage control can be surface mounted over its own electrical box and is available in white with an SPST switch. 800.906.7248.