Outdoor PIR wireless detector with antimasking technology. Mounting height: 2.5 - 3m. Range of 24 x 2m (20 zones). IP55. Operating voltage: 2.5-9VDC. Power 3 - 7.2 VDC, lithium batteries (not included) consumption 4 mA max A 3VDC. Dimensions: 198 (H) x 93 (W) x 286 (F) mm. Includes bracket, visor and battery compartment, facilitating battery sharing with the transmitter (not included).