Lutron Ceiling Mount Occupancy Sensor (white)

LRF2-OCR2B-P-WH

Automatically turns light off based on room's occupancy
No external power packs, power wiring or communication wiring necessary
Has a radio frequency (RF) range of up to 60' between sensor and compatible Lutron RF controls like Maestro Wireless (MRF2-) dimmers and switches
10 year battery life
360° field of view and 400 sq.ft range at 9' ceiling height