Broan-NuTone Sensaire 0 amps Fan Control Humidity Sensor/Fan Control White 1 pk

This Broan-NuTone Sensaire Humidity Sensing Wall Control for ventilation fans uses Broan-NuTone proven humidity-sensing technology, which can detect a rapid rise in humidity to turn the fan on. It responds to increases in humidity up to 4X faster than other humidity sensors, to help fight mold and improve air quality.