My friend complains of false alarm in the night from the electronic security system installed in her small business. There is no apparent reason like rats/pests etc... why does this happen.. this is a wireless PIR/motion detector (315MHZ)
can police wireless sets in vicinity trip alarm, can cordless phones trip alarm, can tv remote trip it... and so on...
2006-09-07 00:20:51 · 1 answers · asked by king2fisher 2 in Consumer Electronics ➔ Other - Electronics
Assuming we're talking about the same sensor acting up (if it's a different sensor acting up each time, you're going to have to do some bloodhound work to isolate your issue):
If the sensor is located near a HVAC vent, a sudden change in temperature or wind velocity could trigger it. Or it just might be an overly sensitive sensor, esp if it's one pointing out a window (which it shouldn't be anyway. That's where someone just walking past the window could trip the sensor).
2006-09-07 08:21:36 · answer #1 · answered by CMass Stan 6 · 0⤊ 0⤋