Xodus Innovations HS3605 Carlon Thomas and Betts Motion Activated Light Controller also includes a Keychain Remote, White When motion is detected, sensor sends wireless signal to plug in receiver and turns lamp on. Plug in receiver is 2.25 inch X2.5" x 3.75" Timer switch allows choice of on time (6 seconds, 3 minutes, or 10 minutes) Field of detection: 140 degree, range: 60 feet, controls up to 600 watts Optional alarm sound available, sensor uses 4 "AA" alkaline batteries (not included) Bonus key-chain remote included