Lutron Wireless Occupancy Sensor
The Wireless Occupancy Sensor from Lutron is designed for easy installation in offices, classrooms, or rooms of a house where automatic lighting shutoff is desired. The sensor has front-accessible buttons and user-replaceable batteries, which the manufacturer says are designed to last up to 10 years. As many as 10 dimmers or switches can communicate with the sensor via radio frequency. lutron.com
