Item #: VSHE5194782 - UPC: 029054513014 - MODEL#: 4120B

First Alert Hard-Wired with Battery Back-up Ionization Smoke Alarm

Item #: VSHE5194782
Price: $18.99
    The product is in stock Availability: Out of Stock

    About This Item

    • 120 V hardwired smoke alarm wires directly into your home's electrical system
    • Ionization smoke sensor is optimal for detecting fast flaming fires
    • Gasket-less mount system for hassle-free installation
    • Easy-to-access battery drawer
    • Can integrate with up to 12 other first alert or BRK hardwired smoke detectors
    • Battery backup for detection during a power outage
    • Tamper-resistant locking pins
    • Interconnectable up to 18 units such as 12 smoke and 6 CO/heat/relay
    • Emits T3 pattern

    First Alert Hard-Wired with Battery Back-up Ionization Smoke Alarm

  • Brand Name: First Alert
  • Power Type: Hard-Wired with Battery Back-up
  • Sensor Type: Ionization
  • Product Type: Smoke Alarm
  • Number in Package: 1 pk
  • Volts: 120 volt
  • Detects Carbon Monoxide: No
  • UL Listed: Yes
  • Packaging Type: Clamshell
  • CSA Listed: No
  • Test and or Reset Button: Yes
  • ETL Listed: Yes


  • Unit: EA
    • Detection Range:
    • Accuracy:
    • Response Time:
    • Display Type:
    • Alarm Type:
    • Sound Level: 85 dB
    • Sensor Type: Ionization
    • Power Source:
    • Power Supply: 120 V
    • Operating Temperature: 40 to 100 deg F
    • IP Rating:
    • Mounting Type:
    • Housing Material:
    • Color: White
    • Dimensions: 5.6 in L x 1.9 in W x 5.6 in H
    • Suitable for:
    • Includes: 9 V Battery

    UL 217 Listed
    MPN: 4120B - UPC: 029054513014