First Alert CO5120BN Hardwired 120V Electrochemical Carbon Monoxide Alarm with Battery Backup

Item: #407143
Model : #CO1-W01-B12
UPC #00194160016145
$49.99
In-store price may vary from online price. Not all products available at all stores.
$49.99
In-store price may vary from online price. Not all products available at all stores.
Free Ship-to-Store
  • JETSONS6032 Huguenard Rd
    FORT WAYNE, IN 46818 US

    Estimated pickup day: 7/23/2026
Ship to Address
  • Ground Shipping Available
  • Expedited Shipping Available
Details
  • First Alert CO5120BN Hardwired Electrochemical Carbon Monoxide Alarm with Battery Backup.
  • Includes a battery backup that is perfect for meeting codes wherever CO detectors are required for new construction.
  • Features a quick plug-in power connector that makes the installation process a near effortless one as it will connect right into your building's wiring.
  • Additional features such as a microprocessor that limits nuisance alarms and a single test/silence button add versatility to an already efficient carbon monoxide alarm.
  • Includes an advanced electrochemical sensor that detects carbon monoxide leaks from a variety of sources, such as faulty fuel-burning appliances, blocked chimneys, and cars left running in the garage.
  • The unit comes with a 9-volt battery and features a pivoting, easy-to-access battery drawer that allows you to replace the battery without dismounting the alarm.
  • Can also integrate with up to 12 other First Alert or BRK hardwired alarms for coverage of larger spaces.
  • It also integrates with up to six other compatible devices, such as bells, horns, and repeaters.
  • If one alarm in the series is triggered, they will all sound.
  • The alarm features a latching indicator to identify which unit triggered the alarm, alerting you to the area of danger.

Additional Details

  • Electrochemical sensor
  • 85 decibel alarm sounds when potentially harmful level is reached
  • 2 silent features; unwanted alarms and low battery silence
  • Instant test/reset button
  • 9V battery included
  • 5 Yr. Limited Warranty
  • UL Listed
Specifications
TypeHardwired
Voltage120
Battery LifeVaries According To Battery Life
Sensor TypeElectrochemical
Dimensions2.09
Battery Back-UpYes
Alarm TypeCarbon Monoxide
Decibel Level85dB
Battery Type9V
Batteries IncludedYes
ColorWhite
UL ListedUL Listed
Warranty5 Yr. Limited
BrandFirst Alert
BrandFirst Alert
BrandFirst Alert
BrandFirst Alert
BrandFirst Alert
BrandFirst Alert
BrandFirst Alert
BrandFirst Alert
BrandFirst Alert
BrandFirst Alert
BrandFirst Alert
BrandFirst Alert
BrandFirst Alert
BrandFirst Alert
BrandFirst Alert
BrandFirst Alert
BrandFirst Alert
Height (in.)5.72
Length (In.)5.53
Noise Rating (dB)85
UPC00194160016145
Package Quantity1
Unit of MeasurementEach
Country of OriginMexico
Reviews
Questions & Answers