USI Electric - MICN109 Hardwired 3-in-1 Smoke, Carbon Monoxide and Natural Gas Alarm

$ 38.99
Availability: Out Of Stock

This item has been discontinued and replaced with Model MIC1509S

Alarm Type Smoke, Carbon Monoxide & Gas
Power Source Hardwired
Ionization & Electrochemical
Interconnects Yes
Battery 9V

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The USI 3-1 alarm provides protection against fires, carbon monoxide, and natural gas. The MICN109 is suitable for houses, apartments and mobile homes. The alarm is a 120-volt AC/DC hardwired alarm and it has a  9-Volt Backup battery. Microprocessor Intelligence provides superior nuisance alarm resistance, temperature and humidity compensation, self-diagnostics and Quick Find alarm origination features. 


  • 120-Volt AC Wired-in
  • 9-Volt battery backup (battery included)
  • Microprocessor virtually eliminated nuisance alarms
  • Product end-of-life service warning
  • Test/reset button
  • Quick draw battery drawer
  • 4 LED's indicates power, smoke, co, and gas
  • Interconnectable up to 24 compatible devices
  • Tamper resistant locking feature
  • Battery activation pull tab
  • Loud 85dB alarm
  • 5 Year limited warranty