Very loud, ear piercing beep every 1 minute.
I tried to take it off the wall to check batteries but it’s properly stuck, worried I’ll lose my deposit if I force it.

Is my house about to explode?

by Quasiwoodo

42 comments
  1. Motion detector for an alarm system.

    The noise could be from a smoke alarm if it isn’t that?

  2. It’s a motion detector.

    The red light means it’s faulty.

    You need to contact your landlord.

  3. I’ve had many different alarm systems over the years at home and in offices and never in my life have I ever heard a PIR sensor beep.

    It’s more likely to be something else in the house beeping.

  4. Looks exactly like one I used to have. Is a motion detector and beep and red light indicate a fault. It will be wired to the mains.
    Don’t fiddle with it or you may be liable. Contact landlord.

  5. Have you removed the screw at the bottom? You might need to carefully cut through the paint where the two halfs join. Vacuum the cobwebs first.

  6. It’s telling you it needs dusting as those cobwebs are confusing its motion sensing chip.

  7. When my alarm broke (battery died and the power went off causing it to think it had been tampered with) I had to put a thick sock over the sensor to stop it picking up motion. Try covering it with something thick, be it a sock or taping some paper or card over it etc.

  8. alarm montion detectors often have a slide out section which holds batteries, so look for anything like that. Course, get the landlord to sort it out is the best move

  9. To turn it off simply stab it forcibly with the butt of a pool cue

  10. Its an everything is ok alarm. When your house burns down, it will stop.

  11. It’s a gieger counter. Look at the lead lining for your fission device

  12. It looks like a PIR motion detector. The red light suggests it saw you taking the picture. It shouldn’t be beeping. It shouldn’t be capable of beeping.

  13. I would have hoovered those cobwebs before putting that picture on the Internet. I’m guessing you don’t have a sense of shame.

  14. It looks like it’s a dual-tech alarm sensor.

    The spiders and cobwebs could well be upsetting it and possibly either be detecting movement all the time or more likely be reporting a “blocked” fault.

    First thing to do is GENTLY clean it, ensure you don’t damage the sensor. If it’s still faulting then you need to call whoever manages the system.

  15. Keep absolutely still. Its vision is based on movement.

  16. You have crackhead spiders living in a squat the sound is them having a melt down

  17. It’s a wanking alarm, you need to keep your hands off it for longer than 60 seconds to stop it beeping.

  18. It’s a spider detector.. I imagine there are a number of them in the vicinity if it’s going off like that.

  19. Alarm guy here. That is a pir motion detector. It has no speaker on board so the noise cannot be coming from that. More than likely a smoke or carbon monoxide detector that’s giving you grief there. If you do open it the intruder system will go into tamper and then you’ll have even more beeping from the control panel.

  20. You need tickling stick to clear the ancient webs first.

  21. Kids these days literally have no idea what a low battery beep is

    That combined with kids being unable read analogue clocks and i fear for the future

  22. It does that if it detects the room occupant touching themselves inappropriately.

  23. It’s a droid, wait for it to fire then reflect the shot back at it with your lightsabre.

  24. It’s a rape alarm. There’s a rapist in the house.

  25. Think detection box. I beeps when you commit a think crime.
    Just be a better human and it will stop.

  26. I’ll attempt to cut through the noise here…

    It’s a “dualtec” motion detector (microwave and infra-red) made by Risco.

    Thse don’t have a speaker or buzzer in them so the noise isn’t coming from there.

    Check the batteries in your smoke alarms please (if that doesn’t stop the noise you have a faulty smoke alarm).

    Source: I’m a fire and security engineer.

    ETA: The red light just means it can “see” movement in its field of view.

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