Both the Broan® and NuTone® lines of ULTRA™ fans and fan lights have expanded to include ULTRA Sense™ models, which provide humidity- or motion-sensing capabilities. Available in single-speed and multispeed models (motion-sensing capability featured in multispeed models only), the fans and fan lights operate at less than 0.3 sones, while operating or adjusting fan speed based on changes in humidity or motion. The ULTRA Sense H detects a rapid rise in humidity to turn single-speed fans on and multispeed fans from low to high. Users can enjoy a comfortable, humidity-free environment more quickly
when taking a bath or shower. After a user-adjustable time delay, the unit turns the fan off for single-speed fans and reduces the speed to the low continuous setting for multispeed fans. The ULTRA Sense M is equipped with a sensor that turns multispeed fans to high when someone walks into the room and reduces fan speed to low after a user-adjustable time delay.