PIR Senosor
PIR Sensor
Motion sensors often rely on infrared energy detection. As someone moves through a room, the sensor detects the changes in infrared energy and activates an alarm. It works from a distance, whereas door and window sensors solely work for the door or window they’re attached to. Two motion detectors do not install in the same area otherwise this two motion detectors are triggered at the same time. The motion detector should not install towards direct sunshine. The antenna should be put on the top. Fix the back cover of the motion detector with a screw driver (Bottom Cover has earmarked a number of holes). Detecting area is 1.5 to 2.5-meter above ground. To prevent the movement of small animals from triggering alarm, you can adjust the motion detector to make the detecting area above 30 cm from the ground, because thieves will not creep on the ground. It is impossible for thieves creep into the house for stealing. Therefore, security is still guaranteed. When you sleep at night with the window open, please string or fix the curtains so that it will not swing to the detecting area and trigger the alarm.
