Seen above the Costco concession stand. The red light blinked slowly.
Posted May 26, 2019, 6:01 PM UTC
04
Could be emergency lighting with battery backup.
1
Commercial Electrician here, this is a thermal switch that is there to detects not motion, but heat. They are all wired together much like smoke detectors in your home. When one goes off they all go off, but in this case the alarm for the store goes off and authorities are alerted immediately. Cheers!
1
Comment for visibility
-3
Motion sensor for their alarm system
Yes it’s a long range motion sensor