A) The position of the detector must be detected during the installation.
B) Do not face windows, light sources, hot objects, etc. directly.
C) Only suitable for indoor.
D) installation height of the ground 1.5-2.5 m from the ground is better.
E) Do not drop or hit the detector during installation to avoid damage to the internal infrared sensor.
F) Do not touch the infrared sensor mirror, so as not to affect the detection distance and sensitivity.
G) The detector should be tested on a regular basis.