Description This infrared detector uses a microprocessor chip with high intelligence and high sensitivity. It can effectively distinguish interference signals and human movement signals and resist false alarms. When an intruder passes through the detection area, the detector automatically detect the human movement in the area. If there is dynamic movement, it send an alarm signal to the control host. Product parameters: Quiet current: ≤40uA Alarm current: ≤15mA Detection range: 8M /110° Alarm indication: blue LED Radio frequency: 433MHz (±75KHz) Transmission distance: ≤100m (in open areas) Working temperature: -10℃~+50℃ Humidity: ≤85% Input voltage: 3V (2 X AA batteries) Color: White Material: ABS Package Contents: 1 x Wireless infrared detector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.