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Pro tip: Switched from a 2-wire to a 4-wire setup for a garage motion sensor.

False alarms dropped from like 5 a week to zero over the last two months. Anyone else find that extra power wire makes that big a difference on long runs?
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3 Comments
samk77
samk771mo ago
Honestly, I've run 2-wire sensors on long garage runs for years with no issues. Sounds more like a bad connection or voltage drop you fixed, not the wire count itself.
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kim_ramirez3
Yeah, that voltage drop theory makes a lot of sense.
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nguyen.blake
Samk77 might be onto something with the bad connection idea... but my money's on the sensor just being happier with its own dedicated power line. It's like giving a fussy toddler their own snack instead of making them share.
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