Wireless Driveway Alarm Alert System Home Security Garage Shed PIR Motion Sensor PIR Sensing Angle: 40° PIR Sensing Distance: 5-8M Working range: 125M Emission frequency: 433MHz Ring Volume: 1-100dB(within 0.5m) Alarm mode: Sound +LED light flicker Two alert choices: High Volume /Low Volume Power Supply(Receiver): DC 1.5V C Battery ×3 (not included) Power Supply(PIR Transmitter): 1 x DC 9V Battery (not included) Features: -Alert with Red light& Sound when pedestrians are approaching. -The Infrared Wireless system alerts you the moment someone enters your property. -What's more,the receiver can pair with up to 50 sensors,giving the ability to secure a large area. -With this system, you'll always have advanced notice that someone's on their way to your door. -The Compact, discreet motion-sensor unit installs on garage, mailbox, fence post... nearly anywhere. -When movement is detected,the Passive Infrared (PIR) sensor sends a wireless signal to the receiver unit from up to 125 meters away. -Our sensor uses state-of-the-art passive-infrared(PIR)to detect any movement within the detection zone.Perfect for long or hidden driveways to allow you just a little extra warning before guests(or intruders). Package included: 1/2 x PIR Transmitter 1 x Receiver 1 x Manual

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