Get First Alert's popular smoke and carbon monoxide detector for $23

Standout features for this smoke alarm include a 'battery drawer' and specialized beeps.

first alart smoke and carbon monoxide detector
First Alert

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Smoke and carbon monoxide alarms may not be the most exciting home products, but they're definitely among the most essential. And today, you can get First Alert's Smoke and Carbon Monoxide Alarm for $22.57 on Amazon, down more than $16 from the list price of $38.69.

In addition to smoke, this detector can pick up carbon monoxide from sources like dryers, chimneys, and furnaces. The alarm has several different beeping patterns to help you differentiate between when it needs new batteries or when there may be an emergency. If it detects carbon monoxide, for instance, it'll beep four times and then pause. 

Other helpful features include a button for testing the alarm and an "EZ access battery drawer" that lets you replace its two AA batteries without removing the unit from the wall. 

Most buyers love this alarm, as it maintains a rating of 4.3 out of five stars on Amazon even after more than 2,000 user reviews. The reviews themselves emphasize the device's easy setup and reliable functionality, although a handful of buyers claim their units stopped working within a couple of months. Fortunately, if you do have problems, it comes with a seven-year limited warranty.

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