USI Electric Carbon Monoxide & Natural Gas Detector, 120V Hardwired w/ Battery

USI Electric MCN108
Carbon Monoxide & Natural Gas Detector, 120V Hardwired w/ Battery
Carbon Monoxide detectors are some of the most important safety features you can have in a building. Shop with Homelectrical through our selection of fire alarms today.
In stockUSD$31.99Each
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USI Electric

USI Electric MCN108 Description

Features of this 120 volt ac wired in carbon monoxide and natural gas alarm include a test and reset button. The three LED lights indicate: power, carbon monoxide and gas. It is interconnectable up to twenty-four compatible devices.

  • Dual Sensing Alarm
  • Hardwiring Required
  • Auto Sensitivity Calibration
  • Replacement or Retrofit
  • Quick Activation Pull Tab
  • Universal Mounting Bracket
  • Quick Connect Wiring Harness
  • Quick Find Alarm Origination Feature
  • Product End of Service Life Warning
  • Front Load Battery Drawer
  • 9-Vold Battery Backup
  • Single Silence/Test Button
  • Full Size Plastic Dust Cover
  • 2 Tamper Resistant Locking Features
  • 5 Year Warranty
  • Direct Replacement for:
    • USI-7390

Product Specification

10-year Battery
Alarm Sensing Technology
Alarm Sensor Type
Carbon Monoxide (CO), Natural Gas
Manufacturers Parts Number
Package Size
Power Type
Battery, Hardwired
Sealed Battery
UPC Code
5 Yr

Manufacturer Description

The USI Electric MCN108 Hardwired Carbon Monoxide and Natural Gas Smart Alarm is a 2-in-1 device that provides double the protection with a single installation. This dual-sensing alarm protects against two deadly household threats: carbon monoxide and natural gas (or methane). Perfect for new or replacement installations, the 120-volt AC/DC hardwired alarm is suitable for houses, apartments and mobile homes. Auto sensitivity calibration provides superior nuisance alarm protection and creates consistency in alarm sensitivity. This alarm has additional automatic features including a self-diagnostics check to ensure proper operation, a sensitivity adjustment for changes in temperature or humidity and an end-of-service life warning that sounds when it's time to replace the battery. The 9-volt alkaline battery (included) continues protection in the event of a power outage. This alarm features a quick activation pull-tab and a front-loading battery drawer for replacement without removing the alarm from the bracket. Mount the bracket to any standard wiring junction box and use the large mounting base to cover imperfections in drywall. The plastic dust cover protects the alarm from debris and (2) tamper-resistant locks prevent unwanted alarm or battery removal. For maximum protection, install an alarm inside every bedroom, outside every sleeping area and on all levels of the dwelling. The USI Electric MCN108 Hardwired Carbon Monoxide and Natural Gas Smart Alarm comes with a 7 year limited warranty. USI Electric is a subsidiary of Universal Security Instruments Inc., a U.S. based manufacturer of high quality, easy-to-install home safety products. Founded in 1969, Universal Security Instruments has over 40 years of heritage in providing home safety products for families. With state-of-the-art manufacturing facilities, Universal Security Instruments continues to launch revolutionary new products and technologies with the mission of always working to keep families protected.

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