Review of Kidde Nighthawk 900-0089 Carbon Monoxide Alarm

I just received this from Amazon, at a sale price, so I thought I would clarify what Amazon is selling here. This is the Kidde model number number KN-COPP-B, which is shared by several "assembly numbers" of which this is 900-0089. I think that is what's in the fine print in the photo of the back, but it's hard to read. There are slight cosmetic differences between the pictures and what I received, but less than with other Amazon listings of COPP-B with other assembly numbers.

The important thing is that, although this assembly number has been in use for many years (Google it), the guts of this are the newer technology with the seven year lifespan and death chirp alert, according to what's printed on the case. The case has a handy little summary of what to do for various ranges of alarm readings, so you don't call 911 for minor things, and since you'll never find the manual, which you can read at [...] , albeit for another COPP-B assembly number.

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Product Description:
Protect your family with the worlds most accurate carbon monoxide alarm.The Carbon Monoxide Alarm with display offers the protection and features that you have come to expect from Kidde. This alarm offers the convenience of a large, easy to read digital LCD display, the added protection of battery back-up in case of a power outage and easy to install mounting options.Features:-Large Digital LCD readout displays carbon monoxide level clearly-Easy-to-install mounting options: Place on table or mount on the wall-Works during power outages using 3 AA batteries (included)-Peak level memory recalls the highest danger level detected-No costly sensor replacement needed-Updated digital reading every 15 sec. lets you see if and when levels change-Digital readout from 30-999PPM provides continuous monitoring of carbon monoxide levels-Loud 85 decibel alarm-Test/Reset button allows you to immediately silence alarm and test alarm electronics-UL listed

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