Replies

1. 
   calvin | Jan 17, 2025 07:41am | #1

   Some sort of alarm sensor?

   Search via google image.

   https://bgs.cc/burk-motion-sensor/

   Similar to a Honeywell sensor.

2. 
   user-6482646 | Jan 17, 2025 07:49am | #2

   It looks like a motion sensor for an alarm system

3. 
   Adnan786 | Jan 18, 2025 09:34am | #3

   It looks like you have a motion sensor mounted on your wall! These devices are commonly used in security systems to detect movement within a certain area.

4. 
   Adnan786 | Jan 18, 2025 09:39am | #4

   It is also known as PIR+Intelligence Infrared Detectors

   
5. 
   royturning | Jan 20, 2025 02:26pm | #6

   parapc,
   Follow-on. . . I found a bunch of wires that lead to a motherboard in a closet. So this sensor was just a small part of a whole house security system that was powered by a now dead battery. I removed all of it. Apparently it was all installed when the house was built over 30 years ago by the original owner. The second owner disconnected it and now as the third owner I've gotten rid of the whole system. Problem solved - I think.

6. 
   manpro | Jan 23, 2025 12:54am | #8

   Royturning! It’s pretty common to come across older, unused home security setups, especially when buying a place that’s been through a few owners. Disconnecting everything and capping the wires was a smart move. Just make sure there’s no active power source to avoid any surprises, If you’re planning to patch up the hole, you might want to check one more time for any live connections before covering it up. But overall, sounds like you’ve solved the issue! Nice work!

7. 
   royturning | Jan 20, 2025 12:01pm | #5

   parapc,
   Thanks for the reply. I opened it up and the inside label says: C&K Systems. Model MC-760. I'm going with other people who think it's some kind of motion sensor, IDK for sure. It has never sounded an alarm since I've been here, 3 yrs. Anyway the C&K web site doesn't show a manual for this model so I'm thinking it's pretty old. I tried to figure out where the wire(s) lead from but so far I haven't. I've disconnected the wires and used electrical tape to cap them. I'm sure the power source is low voltage and I'm thinking I could just push them back into the wall and mud over the little hole.

8. 
   calvin | Jan 20, 2025 02:35pm | #7

   parapc
   There was a photo…..
   Your intelligence miss it?
   Worthless install of your pc of crap spam.

   Edit: seems parapc has deleted their spam.
   Thanks!

9. 
   manpro | Mar 11, 2025 04:17am | #9

   you have an old C&K Systems MC-760 device, likely a motion sensor or part of an older security system. Since it hasn’t triggered an alarm in the three years you’ve been there, it may no longer be active.

   If you’ve already disconnected the wires and capped them with electrical tape, that should help prevent any short circuits. If the power source is indeed low voltage, pushing the wires back into the wall and patching the hole with drywall mud should be fine. However, if you’re unsure about the wiring, it’s always a good idea to consult an electrician to confirm there’s no live connection before sealing it up.