The Passive Infrared (PIR) Motion Sensor detects infrared energy given off by persons in a secured area. An alarm is signaled only when the sensor is armed and the viewed energy has the correct temperature， motion， and timing associated with an intruder， thus safeguarding against false alarms. Specification: Power Requirements �� DC 9VPower Requirements �� 7mA~8mA (While sending)Power Requirements �� 45uA(While monitor)Operating Freqency �� 433��0.2MhzThe largest coverage �� 12*12mVisual Angle �� 110��Bracket Adjustable Angle �� -45�� to +45��(Horizontal line)Bracket Adjustable Angle �� -15�� to +45��(Vertical line)Response Time �� 6sCoding Type �� Ev1527Dimension(LWH) �� 110X65X48mmLifespan of battery �� It can be used half year if send 20 times everydayOperating Temperature �� -10��~+50��Shell Colour �� White Package: 1X Sensor1X Battery1X Bracket3X Screws13X Jumper1X ManualIn original package