USI MI106 Hardwired Ionization Smoke Alarm with Battery Backup

Fast, reliable protection against fast-flaming fires

The USI Electric MI106 hardwired smoke alarm uses a dual ionization-sensing chamber to detect fast-flaming fires quickly, helping you respond sooner. Paired with a replaceable 9-volt battery backup, it remains ready to alert even during a power outage.

Designed for everyday life, it combines quick installation with dependable operation, giving you peace of mind without excessive maintenance.

Streamlined installation and system-wide awareness

Designed for a straightforward setup, the MI106 includes a mounting bracket, a quick-connect wiring harness, and pre-stripped 8-inch pigtail wires. It is interconnectable with all USI-brand 120V alarms using existing wiring, so a multi-device alert is possible across the home.

• Pre-installed 9V replaceable battery backup ensures operation during outages
• Mounting bracket and quick-connect wiring harness simplify wiring
• Interconnectable with all USI-brand 120V alarms using existing wiring
• Patented Quick Find alarm origination identifies the first alarm to sound
• Ambient condition compensation adjusts sensitivity based on temperature and humidity

Real-world benefits for daily life

The dual ionization-sensing chamber supports rapid detection of fast-flaming fires, while ambient compensation helps reduce nuisance alarms in variable environments. A coordinated alert across interconnected devices makes it easier to understand where danger starts.

• Easy installation with a mounting bracket and pre-stripped wiring
• Reliable operation during power outages thanks to battery backup
• System-wide alerts across USI-brand alarms
• Ten-year limited warranty supports long-term use

Warranty and support

The MI106 carries a ten-year limited warranty, reflecting a focus on durable home safety devices and ongoing support for families.