Honeywell RCA902N1004/N Wireless Motion Detector Wireless - Battery operated (9-volt battery not included) Works with RCWL300A, RCWL330A and all Dcor Series Wireless Chimes Sensing range of 40ft Designed for indoor or outdoor use Allow the wireless motion detector to warm up for 2 minutes after connecting the battery regardless of LED indicator. The wireless motion detector will not respond to any movement during the warm-up cycle.