Intruder Alarms and control

Intruder Alarm systems (© K.Brown 2025)

Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number.
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Across:

1. breaking glass detection uses this type of tape
7. the term used for to describe the method by which information that can be sent between systems/users/devices
8. intruder detection devices that are not 'hard-wired' to a controller
10. intruder detection devices - a 'panic-button' is not, but a 'PIR' is, in their operation.
11. Intruder systems that are not stupid.
12. high frequency pressure wave - used for detection
13. a system that can monitor itself.

Down:

2. detection device, you can feel it, but cannot see it.
3. detection that 'looks' for change at 'close-quarters'.
4. private visual monitoring.
5. Intruder detection - wait for the 'ping' to say its done!
6. a rule for the alarm system cables and others.
9. how a door/window switch works.