1 Transmitter 2 Receivers Wireless Infrared Motion Sensor Detector Driveway Home Security Alert Alarm System Wireless Doorbell with Adjustable Door Chimes

With this system, you'll always have advanced notice that someone's on their way to your door.

A motion sensor or motion detector is the linchpin of your security system, because it's the main device that detects when someone is in your home when they shouldn't be. A motion sensor uses one or multiple technologies to detect movement in an area. If a sensor is tripped, a signal is sent to your security system's control panel, alerting you and the monitoring center to a potential threat in your home. The advanced ASIC technology can reduce the false alarm rate of the system caused by moving pets in the house. And auto temperature compensation is for good accuracy under fluctuating temperatures. The surface mount technology makes the detector small and compact.

Features:
High sensitive motion detection due to built-in microcomputer in sensor transmitter, adopts advanced digital and fuzzy logical control technology
Digital temperature compensation, anti-irradiation and anti-RFI
With the integral mask, the detection area can be narrowed down to 20 degrees or anywhere
Can detect a person up to 12 feet, 25 feet away
Sensor can also be set to flash an LED or stay dark when a signal is sent
315 MHz technology features the latest low power RF (Radio Frequency) technology to extend battery life
Compact, discreet motion-sensor unit installs on garage, mailbox, fencepost... nearly anywhere.
Digital signal analysis for consistent detection throughout the coverage pattern
Can put it in the store, office, home, hospital

Specification:
Material: Quality ABS material
Viewing Angle: 120 Degrees
Sensor Type: Wireless Infrared
Installation Type: Wall
Time Delay: Adjustable
Coverage deistance: 280m
Color: White
Size: Detector Sensors: 5.5*4*8cm
Receiver: 6*3*10cm
Power supply: detector sensor - 3 AAA battery
Receiver - AC 220V