First Alert - Battery Operated Carbon Monoxide and Smoke Detector Combo Pack - White

Enjoy peace of mind with this smoke alarm and carbon monoxide detector First Alert combo pack. The smoke alarm has an ionization smoke sensor, and the CO detector's sensor is electrochemical, providing top technology to keep your family safe. Both detectors in this First Alert combo pack come with easy-to-use test buttons and low-battery alerts.
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What's Included

  • First Alert CO400 Battery Operated Carbon Monoxide Alarm
  • 2 x AA Batteries
  • First Alert SA303 Battery Operated Smoke Alarm
  • 9V Battery
  • Owner's manual

Ratings & Reviews

Overall Customer Rating:
100% of customers would recommend this product to a friend (1 out of 1)

Product Features

Combo pack include

CO400 Battery Operated Carbon Monoxide Alarm and SA303 Battery Operated Smoke Alarm.

Protect your loved ones and your home

Detects levels of smoke and carbon monoxide within your home and tests itself automatically.

Electrochemical sensor

Provides all the necessary protection to help keep your family and your home safe.

Carbon monoxide detector

Protection from smoke and fire.

Ionization smoke sensing technology

Finds difference in ionized air to smoke is detected and an alarm is generated.

Loud 85-decibel alarm

Offers a loud pulsing alarm that will sound to alert you to a potential problem.


Possibility of placing anywhere.

Easy access battery door

Fast battery replacement.

Overall Customer Rating

5 out of 55.0
1 Reviews
100%of customers recommend this product.

Product images, including color, may differ from actual product appearance.