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Universal Security Instruments Hardwired Ionization Smoke and Fire Alarm with Battery Backup, Model MI106

Universal Security Instruments

Universal Security Instruments Hardwired Ionization Smoke and Fire Alarm with Battery Backup, Model MI106



About USI

Universal Security Instruments is a U.S. based manufacturer of high quality, easy-to-install home safety products. Founded in 1969, Universal Security Instruments has over 50 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.

Universal Security Instruments MI106 Hardwired Ionization Smoke and Fire Alarm with Battery Backup

Ideal for Every Room in the House

This 120V hardwired alarm is suitable for replacement or retrofitting homes with existing USI brand alarms (with battery drawer). Ionization alarms are more effective at detecting fast flaming fires to help keep your family, home and belongings safe. Fast flaming fires typically consume combustible materials rapidly and spread quickly.

This alarm exceeds industry standards and is listed to UL standard UL 217* and California State Fire Marshal** approved.

  • Interconnectable with up to 24 compatible devices including smoke alarms, carbon monoxide alarms, heat detectors and relays -- if one device goes off, all interconnected devices will too
  • Intelligent microprocessor technology that adjusts to environmental conditions to reduce nuisance alarms
  • Single silence/test button; Ionization Detection
  • * UL 217File number S1810, Last updated Oct. 7 2015 by Underwriters Laboratories, Inc. UL LLC
  • ** CSFM Listing No. 7256-0899:0114, Issued Jul. 1 2018 by California State Fire Marshal (CSFM) Fire Engineering


microprocessor intelligence

About Microprocessor Intelligence

In a survey by the NFPA, 'Smoke Alarms in U.S. Home Fires Fact Sheet'*, smoke alarms sounded in only 53% of 2009-2013 house fires reported to U.S. fire departments, and 59% of home fire deaths resulted from fires in homes with no smoke alarms or no working smoke alarms. This goes to show the importance of having a working fire alarm.

Universal Security Instruments’ Microprocessor Intelligence measures the amount of smoke reaching the chamber, adjusts sensitivity based on room conditions and eliminates the effects of air turbulence from fans or open doors. This technology maintains power consistency to prevent false alarms and is precisely calibrated during production to perform self-diagnosis upon start-up. All of these efforts work towards the ultimate goal of preventing nuisance alarms and unnecessary disabling of faulty alarms.


nuisance alarms

Virtually Eliminates Nuisance Alarms

Universal Security Instruments created Microprocessor Intelligence to virtually eliminate nuisance alarms caused by non-hazardous sources. The only way to safely prevent nuisance alarms is to choose a smoke alarm with a microprocessor that will help distinguish a false alarm from a real fire. This alarm is the only product to offer Smart Alarm Technology that is tested to provide the most reliable detection results and keep families safe.

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