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1040489 Hardwired Ionization Smoke Alarm with Battery Backup

SKU: 1040489

Designed to help promote household safety, the First Alert Hardwired Ionization Smoke Alarm with Battery Backup can provide early warning of fire. This hardwired smoke detector uses an ionization smoke sensor to reliably detect smoke from hot, fast-flaming fires.

  • 120-volt hardwired smoke alarm wires directly into your home's electrical system
  • Ionization smoke sensor reliably detects particles from fast-flaming fires
  • Can integrate with up to 12 other First Alert or BRK hardwired smoke detectors
  • Easy-to-access battery compartment; 9-volt battery included
  • Hassle-free installation, no need to rewire
1040489 Hardwired Ionization Smoke Alarm with Battery Backup
SKU: 1040489
9120B Product being tested

Product Overview

Ionization Sensor Reliably Detects Flaming Fires

The First Alert Hardwired Smoke Alarm with Battery Backup comes equipped with an ionization sensor to help provide the earliest possible warning of a fast-flaming fire. The sensor is optimized to detect flaming fires, such as those caused by paper, kitchen grease, and other fast-combusting materials.

Hassel-Free Easy Installation

To facilitate hassle-free installation, this fire and smoke detector features a streamlined mounting system with no need to rewire. The mounting bracket keeps the detector secure over a wide rotation range while maintaining perfect alignment. AC-powered smoke alarms must be installed in accordance with all local electrical codes.

Battery Backup for Detection During a Power Outage

This Ionization Smoke Alarm is designed for hardwired installation, but it also features a battery backup that helps ensure continued protection in the event of a power outage. The smoke and fire detector comes with a 9-volt battery and features a pivoting, easy-to-access battery compartment that allows you to replace the battery without dismounting the hardwired detector.

Works in Tandem with Other First Alert Alarms

In addition to functioning independently, this hardwired ionization smoke alarm can also integrate with up to 12 other First Alert or BRK hardwired alarms for coverage of larger spaces. This detector also integrates with up to six other compatible devices, such as bells, horns, and repeaters. If one detector in the series is triggered, they will all sound. The fire alarm features a latching indicator to identify which unit triggered the detector.

Specifications

Model9120B
Replacement ModelSMI100-AC
TypeSmoke Alarm
Sensor TypeIonization
Sensor InformationSmoke particles of varying number and size are produced in all fires. For maximum protection, use both ionization and photoelectric sensing technologies. Ionization alarms are generally more sensitive to fast flaming fires and photoelectric alarms are generally more sensitive to smoldering fires.
Power SourceHardwired
Battery ReplaceableYes
Battery BackupYes
Backup Battery Size9V
Hardwired InterconnectivityYes
Sound Level85dB at 10 feet
Product Height1.9 in
Product Length5.6 in
Product Width5.6 in
Product Weight0.6 lb
FeaturesEnd-of-Life Warning, Battery Backup, Hardwire Quick Connect Plug Included
UPC Number029054019592
Warranty10 Years Limited
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Resources

More Information on Ionization vs. Photoelectric Smoke Alarms

User Manual for 9120B Hardwired Ionization Smoke Alarm (English, Spanish)