

First Alert Dual-sensor Smoke and Fire Alarm, Battery Powered, SA320CN
Key item features
- Dual Sensing: Equipped with two sensors, this alarm effectively detects smoke from both smoldering and flaming fires, providing comprehensive protection.
- False Alarm Reduction: Engineered with intelligent sensing technology, it is designed to minimize false alarms triggered by common occurrences like cooking smoke or steam.
- Audible Alert: A loud 85dB alarm ensures that the alert is easily heard throughout the home, providing timely notification of potential fire hazards.
- Simple Operation: Features a single test/silence button for straightforward operation, allowing users to easily test the alarm or silence it when needed.
- Battery Powered: This fire detector is battery-powered, offering flexible installation anywhere without the need for electrical wiring.
- Included Accessories: Comes with two AA batteries and a mounting bracket, providing everything needed for immediate installation and use.
Specs
- Power typeBattery
- Battery life8760 h
- FeaturesLow Battery Indicator
- Batteries inclY
- Smart techN
- Decibel rating85 dB
How do you want your item?
Similar items you might like
Based on what customers bought
First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 3-Pack $52.06
$5206current price $52.06First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 3-Pack
224.3 out of 5 Stars. 22 reviewsKidde Fire Sentry Micro Profile 3 Year Smoke Alarm, 9 Volt Battery $11.36
2 optionsAvailable in additional 2 options$1136current price $11.36Kidde Fire Sentry Micro Profile 3 Year Smoke Alarm, 9 Volt Battery
16024.5 out of 5 Stars. 1602 reviewsFirst Alert Dual Sensor Smoke Alarm with 10-Year Sealed Battery, 1 pk $64.99
$6499current price $64.99First Alert Dual Sensor Smoke Alarm with 10-Year Sealed Battery, 1 pk
50+ bought since yesterday First Alert 1046828 Battery-Operated Smoke Alarm, 2-Pack, 9V Batteries Included $24.46
50+ bought since yesterday
$2446current price $24.46First Alert 1046828 Battery-Operated Smoke Alarm, 2-Pack, 9V Batteries Included
1344.6 out of 5 Stars. 134 reviewsUniversal Security Instruments Hardwire Smoke, Fire, Carbon Monxide, with Battery Backup, Voice Alert Alarm $64.97
$6497current price $64.97Universal Security Instruments Hardwire Smoke, Fire, Carbon Monxide, with Battery Backup, Voice Alert Alarm
10 Year Smoke CO Alarm w Voice $53.95
$5395current price $53.9510 Year Smoke CO Alarm w Voice
174.1 out of 5 Stars. 17 reviewsUSI 3-in-1 Smoke, Photoelectric and Ionization Fire and Carbon Monoxide Smart Alarm with 10 Year Sealed Battery, 85 Decibels $99.99
$9999current price $99.99USI 3-in-1 Smoke, Photoelectric and Ionization Fire and Carbon Monoxide Smart Alarm with 10 Year Sealed Battery, 85 Decibels
474.3 out of 5 Stars. 47 reviewsFirst Alert SMI100 Battery-Operated Smoke Alarm, 1046827PT $16.99 $28.80/ea
$1699current price $16.99$28.80/eaFirst Alert SMI100 Battery-Operated Smoke Alarm, 1046827PT
694.4 out of 5 Stars. 69 reviewsFirst Alert 1046736, Battery Photoelectric Sensor Smoke Alarm 2 Piece $51.99 Was $62.99
$5199current price $51.99, Was $62.99$62.99First Alert 1046736, Battery Photoelectric Sensor Smoke Alarm 2 Piece
234.9 out of 5 Stars. 23 reviewsFirst Alert Standard Battery-Operated Smoke Alarm and CO Alarm Value 2 Pack with Models SMI100 and CO400, 1046718PT $34.99 $24.99/ea
$3499current price $34.99$24.99/eaFirst Alert Standard Battery-Operated Smoke Alarm and CO Alarm Value 2 Pack with Models SMI100 and CO400, 1046718PT
64.8 out of 5 Stars. 6 reviewsUniversal Security Instruments Hardwire Smoke & Fire Alarm, with 10-Year Battery Backup $44.97
$4497current price $44.97Universal Security Instruments Hardwire Smoke & Fire Alarm, with 10-Year Battery Backup
50+ bought since yesterday Universal Security Instruments Inc Sensing Plus, Smoke and Fire Alarm, Multi-Criteria Detection, with 10 Year Sealed Battery $27.97
50+ bought since yesterday
$2797current price $27.97Universal Security Instruments Inc Sensing Plus, Smoke and Fire Alarm, Multi-Criteria Detection, with 10 Year Sealed Battery
574.5 out of 5 Stars. 57 reviewsKidde Dual Sensor Smoke Alarm, 85 Decibels, KIDDE $26.94
$2694current price $26.94Kidde Dual Sensor Smoke Alarm, 85 Decibels, KIDDE
162.9 out of 5 Stars. 16 reviewsUniversal Security Instruments 10-Year Battery, Smoke & Fire Alarm $29.97
$2997current price $29.97Universal Security Instruments 10-Year Battery, Smoke & Fire Alarm
Universal Security Instruments Hardwire Smoke & Fire Alarm, with Battery Back-up $27.97
$2797current price $27.97Universal Security Instruments Hardwire Smoke & Fire Alarm, with Battery Back-up
15 out of 5 Stars. 1 reviewsUniversal Security Instruments Battery, Smoke & Fire Alarm $17.97
$1797current price $17.97Universal Security Instruments Battery, Smoke & Fire Alarm
33.3 out of 5 Stars. 3 reviewsFirst Alert SC5 Hardwire Smart 2-in-1 Smoke and CO Alarm with Voice Alerts and Battery Backup $129.99
$12999current price $129.99First Alert SC5 Hardwire Smart 2-in-1 Smoke and CO Alarm with Voice Alerts and Battery Backup
15 out of 5 Stars. 1 reviewsFirst Alert SC5 Battery Smart 2-in-1 Smoke and CO Alarm with Voice Alerts $111.40
$11140current price $111.40First Alert SC5 Battery Smart 2-in-1 Smoke and CO Alarm with Voice Alerts
14 out of 5 Stars. 1 reviews
About this item
Product details
- Model number SA320CN
- 2 sensors detect smoke from both smoldering & flaming fires
- Engineered to reduce false alarms from cooking smoke or steam
- Loud 85dB alarm is designed to be heard easily
- Single test/silence button for simple operation
- Battery-powered fire detector installs anywhere with no wiring required
- 10-year limited warranty
- Includes 2 AA batteries & mounting bracket
Specifications
Power type
Battery life
Smoke & carbon monoxide alarm sensor technology
Brand
Warranty
Warranty information
Warranty url
Warnings
Ingestion Hazard
Warning Text
Customer ratings & reviews
Customer images






+10 images
Showing 1-3 of 54 reviews
Verified Purchase
SA320CN
As others have stated, product image does not match the product. However the product description is correct. Price was much lower than expected so was worried would get not the model I thought it was or much older manufactured dates. This is First Alert dual sensor smoke alarm only. Model SA320CN. Comes with 2 Duracell AA batteries. Ordered 6 (January 2024), all 6 had manufactured sticker date of October 2023. Pleased with purchase. This model was reviewed by a consumer group who reports on product testing. They gave it a high recommendation. We replaced all the expired detectors with these. We needed battery detectors not hardwired but we didn't want to go with the 10 year lithium versions.
Verified Purchase
First Alert Smoke Detectors
I purchased four of these Dual Sensor smoke alarms to replace the first ones I have had for ten years. Never had any problems with them; only replaced because of their age. I like that they are good for detecting both smoldering fires and flaming ones. I can use them throughout the house.
Verified Purchase
The pair of alarms ordered arrived as scheduled and undamaged in shipping. I can only test them and accept the fact that they will function if there is an emergency. Installation on the ceiling was simple because I could use mounting screws from the previous alarms. NOTE that the battery compartment is a pullout drawer not a hinged one like some other alarms.
