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Carbon monoxide detector

328 Views 6 Replies 5 Participants Last post by  roughneck
Using a Field piece co detector (scm4) that I borrowed from work, after getting furnace done I was checking my house and I noticed around light switches it would light up and beep really fast & registering around 100ppm then quickly return to 0ppm just like a voltage detector would do. Could anyone explain what's happening. Thanks.
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Thank you guys, the detector was calibrated and nothe areas in the show's any readings not even in the basement near the furnace only at light switches and that's only for a second then it quickly returns to 0ppm. Ps. My house is over a 100years old don't know if that matters or not thanks
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