FIRST ALERT SC9120B Corded Electric Combination Alarm with Adapter Plugs for Easy Replacement
Amazon Price as of 02/16/2025 02:18 GMT+00:00
$69.99
Deal Detector and Price History
We analyze price history to spot good deals
Include Prime Price
Bad Deal
average price $60.94
$9.05 higher than average
$40.00
$59.99
Product Description
This First Alert hardwired smoke alarm and carbon monoxide detector features an ionization smoke sensing chamber and an electrochemical carbon monoxide sensor. Installation and connection to AC power is easy with the included adapter plugs and "quick-connect" wiring harness so you can you easily replace existing hardwired alarms without needing to rewire. The 10-year battery backup allows for continued monitoring for the life of the alarm. Intelligent sensing technology is designed to reduce nuisance alarms; one button silences them if they do occur, and also tests detector functions. The latching alarm indicator automatically identifies which unit initiated the alarm, even after the conditions that set it off have subsided. And an end-of-life signal enhances your safety by letting you know when it's time to replace the unit. Connect it to compatible BRK or First Alert alarms within a single-family residence; connecting will sound all the alarms together.
• Convenient adapter plugs makes it easy to replace existing hardwired alarms without needing to rewire
• Keep your family safe with this hardwired First Alert smoke and carbon monoxide alarm with a 10-year battery backup, which means constant monitoring for the life of the alarm, even if there's a power failure
• Combination smoke alarm and carbon monoxide detector features electrochemical carbon monoxide sensing technology, as well as intelligent smoke sensing technology to reduce nuisance alarms
• Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85-decibel siren provides a clear, loud warning upon detection
• Simple to use, with a single test/silence button; includes 10-year lithium battery with a locked drawer to prevent tampering
• 10-year limited warranty; equipped with end-of-life signal, so you know when it's time to replace the unit for your safety
• Rigorously tested to meet UL standards
• To ensure complete protection make sure to place one carbon monoxide detector on each level of your home and in each bedroom
Reviews
Review AI Summary
🔥 Top FIRST ALERT deals you shouldn’t miss!
First Alert SMI105-AC, Interconnect Hardwire Smoke Alarm with 10-Year Battery Backup, 1-Pack
-23% $22.99
View at Amazon
First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup, 12-Pack
-13% $454.99
View at Amazon
First Alert Three-Story Portable Fire Escape Ladder, 24 Feet, EL53W-2 , Black
-8% $110.00
View at Amazon
First Alert DWB-700 Indoor 2.4-Gigahertz Digital Wireless Family Surveillance Camera
-49% $50.00
View at Amazon
FIRST ALERT SCO5CN Smoke Detector and Carbon Monoxide Detector Alarm | Battery Operated, and FIRST ALERT CO605 Plug-in Battery Backup Carbon Monoxide Alarm
-11% $51.06
View at Amazon
First Alert SCO5CN Battery Operated Smoke and Carbon Monoxide Detector 1-Pack with Home Fire Extinguisher
-1% $59.05
View at Amazon
First Alert FG200B Family Gard Basics Smoke Alarm, 2 Count (Pack of 3) | Battery Operated Smoke Detector , White
-3% $35.63
View at Amazon
First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 3-Pack
-22% $49.85
View at Amazon
First Alert HOME1 Rechargeable Standard Home Fire Extinguisher UL Rated 1-A:10-B:C, Red with Metal Bracket Bundle
-1% $32.81
View at Amazon
First Alert SMI100-AC, 9120B Replacement Hardwire Interconnect Smoke Alarm with Battery Backup, 1-Pack
-17% $18.88
View at Amazon
First Alert PRC710 PC1210 10-Year Combination Carbon Monoxide and Photoelectric Smoke Detector, Frustration Free
-28% $53.99
View at Amazon
First Alert Interconnect Hardwire Smoke Alarm with Battery Backup & Voice Alerts, 12-Pack
-4% $388.60
View at Amazon
FIRST ALERT Plug-In Carbon Monoxide Detector with Battery Backup, (Pack of 3), CO605
$53.97
View at Amazon
First Alert SA320FF Dual-Sensor Smoke and Fire Alarm, Battery Powered, Frustration-Free Packaging, White , 1 Pack
-11% $23.75
View at Amazon
First Alert Powered Alarm SCO5CN Combination Smoke and Carbon Monoxide Detector, Battery Operated, 1 Pack, White
-6% $37.38
View at Amazon
First Alert Marine1 Fire Extinguisher, UL Rated 1-A:10-B:C, White, FE1A10GR with Metal Bracket Bundle
$33.97
View at Amazon
Related Products
X-Sense Smoke Alarm, 10-Year Battery Fire Alarm Smoke Detector with LED Indicator & Silence Button, SD2J0AX
$13.99
View at AmazonFirst Alert SMI105-AC, Interconnect Hardwire Smoke Alarm with 10-Year Battery Backup, 1-Pack
-23% $22.99
View at Amazon
X-Sense Carbon Monoxide Detector, Replaceable Battery Powered CO Alarm with Digital Display, Portable Carbon Monoxide Detector for Travel, XC0C-SR, 1-Pack
-16% $14.94
View at Amazon
Rope Ladder,39 Feet Emergency Fire Escape Ladder Flame Resistant Safety Rope Ladder with Hooks,Fast to Deploy Sturdy and Strong Portable and Reusable 3 Story,Weight Capacity up to 2000 Pounds
-17% $69.99
View at AmazonRope Ladder,65 Feet Emergency Fire Escape Ladder Flame Resistant Safety Rope Ladder with Hooks,Fast to Deploy Sturdy and Strong Portable and Reusable 4 Story,Weight Capacity up to 2000 Pounds
-14% $119.00
View at Amazon
25ft Safety Balcony Emergency Fire Escape Ladder with Hooks Carabins | 2 Story for Adults and Kids |Reusable Multi-use for Treehouse|Weight Capacity up to 2000 lb
-5% $55.99
View at Amazon13ft Safety Balcony Emergency Fire Escape Ladder with Hooks Carabins | 2 Story for Adults and Kids |Reusable Multi-use for Treehouse|Weight Capacity up to 2000 lb
-29% $29.99
View at Amazon
Fire Escape Ladder，32 （10M） Feet Portable Safety Rope Ladder Fire Escape for 3 Story Emergency Ladder with 2 Hooks Homes Multi-use for Kids and Adults
-6% $55.99
View at AmazonFire Escape Ladder，16（5M） Feet Portable Safety Rope Ladder Fire Escape for 2 Story Emergency Ladder with 2 Hooks Homes Multi-use for Kids and Adults
-10% $34.99
View at AmazonFire Escape Ladder，9.8 （3M） Feet Portable Safety Rope Ladder Fire Escape for 2 Story Emergency Ladder with 2 Hooks Homes Multi-use for Kids and Adults
$26.99
View at AmazonFire Escape Ladder，26（8M） Feet Portable Safety Rope Ladder Fire Escape for 2 Story Emergency Ladder with 2 Hooks Homes Multi-use for Kids and Adults
-12% $43.99
View at AmazonFirst Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup, 12-Pack
-13% $454.99
View at Amazon
Kidde Hardwired Smoke & Carbon Monoxide Detector, 10-Year Battery Backup, Voice Alerts, Interconnectable LED Warning Light Indicators, 2 Pack
$129.99
View at Amazon
AEGISLINK Smoke and Carbon Monoxide Detector 10-Year Lifespan, Photoelectric Fire Alarm and Electrochemical CO Alarm with Test/Silence Button, with Replaceable Battery, SC240
-4% $19.99
View at Amazon
4 Pack 10 Year Battery Operated Smoke and Carbon Monoxide Detector, Portable Fire Co Alarm for Home and Kitchen (White)
$80.99
View at Amazon
Emergency Fire Blanket for Home Kitchen - KANHIRO Fiberglass Fire Suppression Blanket Great for School, Fireplace, Grill, Car, Office, Warehouse (7 Pack, 39 in X 39 in)
-38% $32.99
View at Amazon
StaySafe All-in-1 Portable Fire Extinguisher by LifeSafe Technologies | Compact & Easy to Use | for Home, Kitchen, Car, Garage, Boat | Non-Toxic & Eco-Friendly | Tackles 10 Types of Fire | 3 Pack
-28% $49.99
View at AmazonEmergency Fire Blanket for Home Kitchen - KANHIRO Fiberglass Fire Suppression Blanket Great for School, Fireplace, Grill, Car, Office, Warehouse (8 Pack, 39 in X 39 in)
-53% $30.99
View at Amazon
StaySafe All-in-1 Portable Fire Extinguisher by LifeSafe Technologies | Compact Fire Spray easy to use on 10 types of fires | Non-Toxic & Eco-Friendly
-26% $21.99
View at Amazon
LifeSafe Technologies StaySafe All-in-1 Portable Fire Extinguisher Compact & Easy to Use | for Home, Kitchen, Car, Garage, Boat | Non-Toxic & Eco-Friendly | Tackles 10 Types of Fire | 5 Pack
-13% $94.99
View at Amazon
Kidde Mariner PWC Marine Fire Extinguisher for Boats, 5-B:C, 3.3 Lbs., Coast Guard Approved, Mounting Bracket (Included), White
$18.98
View at Amazon
