20 meter single lens (ABO) sensor

What are Linear Detector Sensors or Laser Sensors?

Sometimes you may not be able to see a specific area with eye sensors because you may have traffic in that area, and maybe because of reasons such as high cost, lack of aesthetics, and so on. Use so you can use laser sensors. These sensors are coupled and wired to each other and eventually connected to the alarm. The way the sensors work is through an infrared transmitter and an optical receiver. Which is not visible to the naked eye and when cut off by light passing through it ... Can trigger and alarm an alarm.