Customer Reviews

BRK Brands CO5120PDBN Hardwire Carbon Monoxide Alarm with Battery Backup and Digital Display

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The BRK Carbon Monoxide Detector (CO5120PDBN) is difficult to install because the foam insulation disk glued to the back of the detector unit interferes with the proper engagement of the unit's tabs into the base's slots. I found that by trimming the foam insulation away from the tab slots with a utility knife, the tabs could properly engage, making the unit much easier to install. I have seen other reviewers comment on the difficulty of re-installing the unit to the base. I think my suggestion may be a solution to that problem.

The detector is made fairly robustly, but the only thing disappointing was that to mount on a box, there is a think plastic bracket. Rather than having defined screw holes, there are a series of conjoined slots. These slots must be tightened significantly in order to securely mount the base. Unfortunately, the bracket is poorly designed where as the torque applied when tightening one box screw will dislodge the other screw. This is a major oversight by the manufacturer, which creates about 5 minutes of swearing your first time installing this product.

i bought this to replace a 1st alert model they no longer make. It probably works ok but the interconnect to other alarms doesn't work and it was really hard to get the detector back on the mount once the two were separated to install. To get it back on I had to use a razor blade to remove parts of the insulation. The 800 number was helpful in figuring out how to get it back on. Overall ok but if I didn't already have a smoke detector right next to it I would have bought a combination smoke/co2 detector. It was delivered on time.

In Sept 2010, I purchased and installed 2 of these units in my home. About 1 week, after I installed the units much to my surprise one of the detectors starting beeping in the middle of the night! Although, the unit was manufactured in May 2010 it had a battery with an expiration date of Feb 2010 - how stupid is that!

If you buy the unit, please check the battery expiration date. Better yet this should be done at the factory before it is shipped to consumers!