WhisperControl Condensation Sensors ENERGY STARa® rated and CALGreen compliant features Humidity Control Advanced Sensor Technology to detect Relative Humidity and temperature for superior accuracy, Countdown Timer manually turns fan on initiating a 30 minute countdown cycle and Manual On/Off Control.
Features:

• Condensation Sensor - 3 Controls in 1
• Humidity Control - Automatically turns on exhaust fan control humidity. Advanced sensor technology detects relative humidity and temperature for superior accuracy.
• Countdown Timer - 30 minute countdown cycle.
• Manual On/Off Control
• Additional Benefits
• Compatible with all Single Speed and/or Single Speed Lite ventilation products
• Stylish decorator design with wall plate included
• LED Indicator light
• ASHRAE
• ENERGY STARa® Qualified
• LEED & CALGreen compliant
• 1 year limited warranty