BoolPool Logo.
Reviews Categories
*By registering an account, you are certifying that you have read and agree to the BoolPool Terms of Service.

Review of First Alert SA320CN Double Sensor Battery-Powered Smoke and Fire Alarm
4.30 stars Very Good Form 170 Reviews
Reviewed on: July 10, 2013 Author:
Price Range


Pros & Cons


  • Easy to install
  • Has both ionization and photoelectric smoke sensors
  • Intelligent sensing technology reduces non-emergency alarms
  • Single button for test and mute operations
  • Easy battery replacement without removing the unit
  • Affordable price
  • Battery operated


  • Chirps false alarm
  • Muffled alarm sound
Review Summary

This is the summary of consumer reviews for First Alert SA320CN Double Sensor Battery-Powered Smoke and Fire Alarm. The BoolPool rating for this product is Very Good, with 4.30 stars, and the price range is $19.88-$25.89.

The First Alert Double Sensor Battery – Powered Smoke and Fire Alarm is equipped to detect smoke particles caused by both flaming and smoldering fires. The dual smoke sensors with both photoelectric and ionization smoke sensing technology helps determine the difference between non-threatening conditions and real emergencies. It also features a convenient single button operation for testing or muting non-emergency alarms. This unit gives an easy access to battery door, enabling easy battery replacement without completely being removed from the ceiling. It uses two AA batteries (included).

However, like most of the alarm devices this unit also chirps frequently and gives false alerts. Some also felt that the alarm sound produced is muffled and might be difficult for elderly individuals to listen and react accordingly.

Overall, the First Alert Double Sensor is a recommended unit for single floor houses for its easy to use functionality and affordable price. It is backed with 10 years warranty and meets UL217 standards.


  • Product Dimensions: 5.7 x 5.7 x 2.8 inches
  • Product Weight: 11.2 ounces
  • Assembled Diameter: 5.7 inches
User Voice
First Alert SA320CN Double Sensor Battery-Powered Smoke and Fire Alarm
Dual sensor alert Easy to install Affordable price Recommended for single floor houses
Review Group #: 1 Rating :
4.00 stars
5 Reviews See Details
Easy battery replacement without removing the unit Easy to clean Mute or silent feature available Good price Chirps frequently giving false alerts
Review Group #: 2 Rating :
4.00 stars
14 Reviews See Details
Easy to install Easy to change batteries Includes AA batteries Dual alarm unit
Review Group #: 3 Rating :
4.00 stars
17 Reviews See Details
Double / Dual sensors Easy to install and test Works well with negligible false alarms Reasonably priced
Review Group #: 4 Rating :
5.00 stars
20 Reviews See Details
Works fine Decent sound Little sensitive which leads to non-emergency alerts Press test button fully to check its operation
Review Group #: 5 Rating :
4.00 stars
20 Reviews See Details
BoolPool Customer Reviews Write Review
Have a comment or question? Post Comment/Question
Review Sources
Ratings Badge
Rating : 4.30Very Good
Read Product Review