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Review title: Decent detector with culprits
Product review: These are decent detectors, however not without problems. They do require to be hard wired to AC to operate and left running on battery alone will exhaust it within days and sound "low battery" alarm. Therefore leaving a house for vacation and shutting down all power is not an option.Secondly, as others mentioned, they do sound a false alarm once in a while due to power fluctuations. Indeed, this usually happens at night, the most unfortunate timing.And thirdly, although by design, the volume of the alarm is absolutely deafening, so much so that approaching the detector to turn it off in the middle of the night is a self-inflicted torture. Perhaps great for hearing impaired but not recommended for folks with good ears.But most importantly, like other ionizing smoke detectors, this devices will fail to alarm you during a slow burning smoldering fire (such as smoking upholstered furniture) until it is too late (see NBC Nightly News on 3 Oct 2012).
