Universal Security Instruments Inc MI106S 10-Year Sealed Battery Back-Up Operated Smoke and Fire Alarm

The USI Electric Hardwired Smoke and Fire Alarm uses patented Universal Smoke Sensing Technology to respond quickest to BOTH fast-flaming fires and slow smoldering fires to protect your family against deadly threats in the home. U.S.S.T. provides the benefits of both photoelectric and ionization alarms in 1 device. Perfect for new or replacement installations, the 120-Volt AC hardwired alarm is suitable for houses, apartments and mobile homes. This alarm is fully interconnectable with all USI and Universal 120-Volt alarms using existing wiring and mounting. Quick Find alarm origination iden