Wireless Occupancy Sensor, Sensing Technology Passive Infrared (PIR), Operating Voltage 12 to 24V DC, Maximum Coverage Area 1,800 sq ft, Maximum Mounting Height 15 ft, Load Rating @ 120V AC Dependent on Control Unit Rating, Communication Method Wireless RF, 902 MHz, Color White, Includes (2) Pointed Tip Screws, Sensor Operation Occupancy, Lighting Technology LED, Installation Location Ceiling, Standards RoHS Compliant, Overall Diameter 4.5 in, Maximum Time Delay 20 min, Minimum Time Delay 30 sec