I have several exterior flood lights that are controlled by motion
detectors and have variously been in place for 6 to 10 years. The
manufacturers vary but most are made by RAB Electric Manufacturing. A
couple were made by Heath Zenith.
They fail "ON" at temperatures below about 0 F. The absence of
operating temperature range in the product information should have been
a warning that they weren't proud of their performance but I guess my
architect didn't pay attention to it. I would think a New Jersey based
company would make an outdoor product that could operate at these
temperatures but it's not so.
Does anyone have any experience with motion detectors that function well
over the -20F to 100F range?
Ours works with more sensitivity in cold like last few days.
El Cheapo 10.00 unit made in China.
If it is the model solid state is used to turn on/off the lights,
cold temp. will make the device sluggish. In that situation, mil-spec
component should have been used.
I don't have any info for you other than to say that my outside motion
detector light got stuck ON for the first time two days ago after a
month of temperatures around -10F to +20F. I shut it off, and I plan
on waiting it out to see if it gets better once things warm up a bit.
(I don't like climbing up ladders when it's cold.)
My motion detectors are more like temperature detectors. Every front
that comes thru will turn on my lights and leave them on. I'd say a
drop in temperature from 70 to 45 will cause me to have to readjust
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