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More wireless outdoor PIR detector High Sensitivity Wireless Infrared&Micowave Motion PIR Sensor,Outdoor Pet Immunity Infrared Motion Detector for Home Alarm System Description of Wireless Motion PIR Sensor Wireless Intelligent 2 PIRs Outdoor Detector With Solar Power 8 bands of sensitivities for option Anti direct or reflective sunshine Anti strongly mutative hot/cool air Digital environmental temperature detection Intelligent solar charge technology Purely wireless transmitting structure, easy installation Tamper&low voltage alarm Transmission frequency for option:315MHZ 433MHZ Parameter of Wireless Motion PIR Sensor : 1. Battery power : 3*1.2V AAA Ni-MH Chargeable battery 2. Warm up period: 40s 3. Install high: 1.5m.-2.4m 4. Low battery alarm: 3.3V 5. Radio emission : ≥200m (Open space) 6. Frequency: 315/433MHz 7. Dimensions: 160mm*65mm*50.5mm