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Joined 1 year ago
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Cake day: September 30th, 2023

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  • I need to replace a set of expired smoke detector at my elderly parents’ house. They’re too old to have alarms going off in the middle of the night just because the wind blows.

    Yet, Amazon only seem to sell ones with photo-electric sensors, and many reviews complain about over-sensitivity with dust, and under-sensitivity when the room is clearly full of smoke.

    Additionally, the ones with sealed 10 year batteries - many reviews report a battery life of 2 years or so in practice, with increased false positives as battery life runs down. So now, they have to replace whole units rather than just batteries.

    What happened to good old ionizing smoke detectors with 9v batteries that needed replacing every 2 years or so?!