The Maestro Dual Circuit, Dual Technology sensor enhances reliability by using two technologies (passive infrared and ultrasound) to ensure optimal sensing performance for medium size spaces. This sensor allows you to control 2 circuits with 1 sensor and uses both passive infrared and ultrasound waves to ensure reliable sensing in small rooms. To save additional energy, enable ambient light detection, which allows the sensor to learn your light level preference over time and adapt accordingly to keep lights off when there is enough daylight in the room. Maestro Sensors work with any bulb type, including CFLs and LEDs and will match the decor of any room in your home. Works with 6 Amps lighting/4. 4 Amps fan in 3-way and multi-location applications. Neutral wire required! Installing and setting up a Maestro in-wall, dual-technology occupancy sensor is a simple, easy and low cost way to save energy and add light automation to your home. Coordinating Claro wallplate and accessories sold separately. Installing and setting up a Maestro in-wall, dual-technology occupancy sensor is a simple, easy and low cost way to save energy and add light automation to your home. Coordinating Claro wallplate and accessories sold separately.