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2-IN-1 DETECTION: Alerts you to both smoke & carbon monoxide (CO) using a single, cost-effective detector
HARDWIRED & 2 AA BATTERY BACKUP (Included): Operates on 120V AC wiring (installed in the ceiling) with 2 AA alkaline batteries that provide battery backup coverage during power outages
ENHANCED SENSING TECHNOLOGY: Reduces false smoke alarms often caused by cooking. Comprehensively tested to meet the latest UL standards, meets UL 217 9th Edition, UL 2034 4th Edition, & FCC standards
VOICE ALERTS: Crystal-clear voice alerts will say “Fire.” when smoke is detected or “Warning. Carbon Monoxide.” if CO is detected, so you can react quickly
INTERCONNECT CAPABILITY: When one alarm sounds, they all sound, so you can get out faster. (Different models offer different interconnection options and requirements. See User Guide for more info.)
SELF-TESTING ALARM: Internal components ensure alarm is always operating as expected. Not a substitute for a manual push test, perform a button test once per week to verify alarm operation
3 LED NOTIFICATIONS: LED lights indicate alarm status, green = normal operation, amber = operating error, red = smoke or carbon monoxide detected & a loud 85-decibel alarm will sound
10-YEAR LIMITED WARRANTY: Warranty begins when the alarm is powered on. If that date is unknown, it should be assumed that alarms should be replaced
8 reviews for Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup, Voice Alerts, Interconnectable, LED Warning Light Indicators, 2 Pack
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$79.98

Rikor –
Great replacements for older models
Great replacement detectors. I purchased the wiring adapters also since the original ones had a different angle and wouldn’t work directly. The adapter made it easy. I didn’t have to cut and rewire them. Plug and play.
rkab8745 –
Now we’re protected again.
It’s a high quality product. Easy to install. I wasn’t aware these things have a limited functionality. The ones I replaced were 19 yrs old, that’s why even after I replaced the battery in the old ones they won’t quit beeping.
Cheo –
Good product
Good price for reliable product.
MarkyZ –
If you need two this is a good deal
This model replaced the one that I was using. I had to purchase two adapter kits to attach them .(which is why I dropped it a star) Other than that it was a quick and easy switch. I did not have to replace the wall mount. The new model fit right on. The price for the two pack, that I needed, was much less than buying two separately. Kidde’s wait time for customer service was ridiculously long, but worth the wait as I was able to get exactly what I needed
Amazon Customer –
CO & smoke detector is to save lives
Great product with direct customer support.
CMORRIS –
Kiddie Carbon Monoxide replacement
My carbon monoxide detector died after 20 years. I went on line to figure out where I could buy a replacement unit and the serial number for the replacement.Customer Service with kiddie was helpful in letting me know the detector has gone through an update. The only thing that stayed the same was the bracket.There website also listed several stores who sold the unit I needed but didn’t actually sell them except for Amazon.I bought a two pack along with an adapter for battery operated units. There’s a video instruction on the site that very helpful. It took all of 5 minutes to replace.
Kevin –
Easy to Install and Great Value for Peace of Mind
Pros:• Simple and quick installation• Loud, clear voice alerts• Modern, sleek design• AA battery backup for added safety• Good value for a 2-packCons:• Slightly bulkier than some newer compact models
Amazon Customer –
Useless and dangerous
Too many false positives.The guy who painted the house Installed these guys, the one in the hallway… by the BABYs ROOM… kept going off randomly… I replaced it with the same exact model… guess what its doing?? Getting returned its what its doing… IT GOES OFF WHEN YOU TAKE A SHOWER!! RIDICULOUS.