The Overture™ Smart Air Wall Control is a Broan-NuTone engineered device which contains air sensors to monitor and measure your Indoor Air (IAQ) ecosystem. The Wall Control acts as both a sensor and a switch. Each sensor provides specific air measurements for temperature, humidity, TVOC (Total Volitile Organic Compounds) and CO2 (Carbon Dioxide). These measurements are used to manage your homes ventilation and fresh air system products to properly adjust your indoor air per standards or codes set by the U.S. EPA or other IAQ organizations. This product can be wired for bath fans, ADA-compliant range hoods or other compatible ventilation products with independent fan and light operation. Features: Smart wall control with sensors to monitor and measure temperature, humidity, TVOC's and CO2 to help manage your home's indoor air Ideal for bath fans, ADA-compatible range hoods or other ventilation devices; while connecting to the OvertureTM system to manage your home's indoor air Alexa and Google Home integration for voice activated commands Link to an Overture™ Room Sensor device for managing your indoor air which will automatically turn on ventilation and/or fresh air system as the solution Dual buttons for individual light and fan control LED Indicators (green, yellow, red) indicate indoor air at a glance Bluetooth v4.2 for easy pairing and Wi-Fi 802.11b/g/n 2.4GHz for connectivity White plastic housing blends with most white wall plates UL certification for U.S. and Canada