In continuation of Carbon Monoxide teardowns, we now have a Kidde KN-COEG-3 detector designed to handle both carbon monoxide and natural gas in residential use. Unlike the previous target (First Alert FCD2BT), this one never worked that well, causing frequent “GAS” false panics and piercing alarms, so a teardown is a natural progression for this model! Continue reading
Today’s teardown target is a retired carbon monoxide detector made by First Alert.
The general consensus is that these should be replaced around every five years or so to minimize the risk of sensor degradation getting in the way of detecting an actual event. So let’s take this thing apart and see what makes it tick. Continue reading