Finally got that tricky corner sensor to stop false alarming

Tbh I've been fighting with a motion sensor in a doctor's office lobby in Raleigh for like 3 weeks. Kept going off every time the sun hit a certain window around 2pm. Swapped the lens, moved the bracket, even tried a different model. Yesterday I finally just climbed up there and put a small piece of electrical tape over the bottom edge of the fresnel lens. Hasn't tripped once in 24 hours. Anyone else have a random fix that felt too simple to work?

2 comments

2 Comments

mason2099d ago

I read somewhere that a lot of those false alarms in commercial buildings come from fluorescent lights warming up and shifting color temperature. Never thought about tape though, that's clever. I had a similar issue with a door sensor at a pharmacy once, turned out the gap was too tight and the magnet was barely making contact. Sometimes the dumbest fixes are the ones that work best. Did you try moving the sensor angle first or just go straight to the tape?

seana149d ago

Wait, did you ever figure out if the tape messed with the magnet's alignment over time? My buddy had a similar thing with his garage door sensor, he tried a piece of electrical tape to shim it and it worked for like two weeks then started false alarming again. He finally just had to remount the whole bracket with a tiny washer behind it to fix the gap for good.