WebSome old industrial smoke detectors (notably from the Pyrotronics Corporation) can contain up to 80 microcuries (3,000 kBq). The amount of 241 Am declines slowly as it … WebThis smoke detector has a 10-year battery life (lithium battery), an LCD display, and a dual-sensor. When the battery is dying, the unit emits an end-of-battery-life signal so you know when it is time to replace it. The mounting pattern is different than other smoke detectors, so it can't be easily swapped out. Nest
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