Universal Security Instruments

USI Smoke Alarms are easy to install, reliable and virtually eliminate nuisance alarms. Homeowners will appreciate that you've chosen USI patented Smart Alarm technology - the leading solution for detecting threats from smoke, carbon monoxide and natural gas. You'll be satisfied, too. That's because our system's microprocessor intelligence virtually eliminates nuisance alarms caused by non-hazardous sources like cooking vapors. So you won't get called back unnecessarily. Then we back many of our alarms with our 10-year sealed battery technology for on-going, reliable family protection.