SmartExhaust Time Switch, White - SE1-W by AirCycler

Smart Exhaust Control: Maintains healthy indoor air quality by automatically delivering precise amount of fresh air ventilation throughout the day Dual Settings: Allows for customization with two settings - ventilation and delay, ensuring adequate bathroom ventilation Microprocessor Monitoring: Monitors and controls fan operation, providing a precise amount of ventilation, and subtracting manual operation time from set hourly ventilation time Versatile Operation: Can be used as a replacement for bathroom fan and light switch, with fan operation initiated by light switch and continuing for set delay time after light is turned off, and also energized for set ventilation time once an hour Durable Construction: Made of high-quality plastic and metal materials, ensuring long-lasting performance and durability