Infrared alarms, infrared alarms can be divided into two categories: active and passive. The active infrared alarm is based on the alarm system that actively emits infrared rays. When the infrared rays hit an obstacle, it will bounce back and be received by the probe of the alarm system. If the probe detects that the infrared ray is stationary, it will continuously emit a red line and bounce uninterruptedly, so that the alarm system will not alarm. When a moving object touches this invisible red line, the probe will detect the abnormality and will alarm.
Infrared alarm PCB structure description
1. Working voltage: DC9~16 v;
2. Detection distance: 10m;
3. Switch output: 1A Max, 25V
4. Working temperature: -25℃~ +55℃