First Alert

First Alert Hardwired Combination Smoke and Carbon Monoxide Detector with Battery Back-up

  • Item#: 2489632
  • MFR#: 1044368
This First Alert SC9120B hardwired smoke and carbon monoxide detector includes a 9-volt battery backup that continues to protect you in the event of a power failure. The alarm features electrochemical CO sensing technology, an ionization sensor for smoke detection, and an 85-decibel alarm. One button silences any nuisance alarms, and also tests detector functions, while lights indicate if the alarm detects smoke or carbon monoxide. The latching alarm indicator automatically identifies which unit initiated the alarm, even after the conditions that set off the alarm have subsided. And an end-of-life signal enhances your safety by letting you know when it's time to replace the unit. Easily connect it to compatible BRK or First Alert alarms within a single-family residence; connecting will sound all the alarms together.
  • Keep your family safe with this hardwired smoke and carbon monoxide alarm; the battery backup means constant monitoring, even if there's a power failure
  • Features an electrochemical carbon monoxide sensing technology as well as an ionization sensor that detects the fine particles of a fast-burning fire
  • 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
  • Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected
  • Simple to use, with a single test/silence button, and side-load battery compartment; tamper-resistant locking brackets and universal mounting brackets make installation easy
  • Rigorously tested to meet UL standards
  • Single button test/silence helps to ensure your alarm is working properly
  • 7-Year limited warranty
Color/Finish Family White
Length (in) 5.60
App Compatibility No
Battery Back-Up Yes
Battery Included Yes
Battery Type 9-volt
Bluetooth Compatibility No
Front-Load Battery Yes
Hush Feature Yes
Interconnection Yes
Ionization Sensor Yes
Light No
Long-Life Battery No
Package Quantity 1.00
Peak Level Alert No
Photoelectric Sensor No
Power Source AC hardwired
Series Name N/A
Voice Alert No
Voltage 120.00
Wi-Fi Compatibility No
Works With Amazon Alexa No
Works With Android No
Works With Apple Homekit No
Works With Ios No
Warranty 7-year limited