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c/alarm-system-installersrowan_butler93rowan_butler931mo agoProlific Poster

Question about programming motion sensors in high ceiling spaces

I keep seeing guys set the walk test time way too low in commercial spaces with 20 foot ceilings. They'll use the default 30 seconds, but with that height, the sensor's field is huge and it takes longer for a person to cross. I learned this the hard way on a job in a warehouse in Cincinnati last month. I set it to 60 seconds and the false alarms stopped completely. What's the highest ceiling you've had to adjust for?
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mark676
mark6761mo ago
So you set it to 60 seconds and that fixed it, but what about the actual detection pattern? Did you have to tilt the sensor down more to keep it from seeing too much of the far wall?
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tylerr39
tylerr391mo ago
Did you check the manual for the detection pattern diagram? I read somewhere that tilting it down 10-15 degrees helps narrow the coverage zone so it doesn't catch as much of the opposite wall. I ended up doing that with mine and it stopped the false triggers from the far corner.
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