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  • How are reviewers describing this item?
    small, easy, great, size and loud.
  • Our engine has profiled the reviewer patterns and has determined that there may be deception involved.
  • Our engine has determined that the review content quality is low.
  • Our engine has analyzed and discovered that 63.7% of the reviews are reliable.
  • This product had a total of 453 reviews as of our last analysis date on Mar 26 2019.


Most positive reviewquestion

I love the fact that I do not have to worry about changing batteries every few months.

Least positive reviewquestion


Most authentic reviewquestion

Ordered the “10 year battery” version, even though they all have 10 year batteries. The other version appears to be the older m...  Read More

Least authentic reviewquestion


Helpful Insights


    Posted by a reviewer on Amazon

    Out of the seven, only one gave me the 3 beep low battery warning.

    Posted by a reviewer on Amazon

    Could be just a marginal battery connection that the 'wacking' fixed.

    Posted by a reviewer on Amazon

    I have no problem with smoke detector requirements, but if you use the wrong type here, even though it's perfectly working and maybe ok somewhere else, the authorities make you feel like a criminal.

    Posted by a reviewer on Amazon

    Most people think it is a camera.

    Posted by a reviewer on Amazon

    Loud as hell and small as hell.

    Posted by a reviewer on Amazon

    That's how you know the device is still working (along with normal monthly testing by pushing the test button).

    Posted by a reviewer on Amazon

    You have to activate the battery by pulling the correct insert out.

Review Count History
Price History