How to jam a motion sensor without triggering the alarm?

Top of the line sensor units are a group of various sensors that make various zones to observe. When you wish to blind such a unit, you must blind all the sensors. Inexpensive sensor units have a single sensor, and makers divide the field into zones by physical sources. PIR sensors must be checked daily, and also opened to check if glass or other material was pushed in the unit. Contractors will tune the unit by pushing plastic in it to turn the unit a little less sensitive. Examine PIR units by conducting boundary tests. You require a strong IR laser to try the sensor manufacturer. Check he PIRs daily for glass and coatings, and conduct frequent tests also.

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