Smoke & Fire Alarms by USI - Photoelectric, Ionization, USST Detectors

USI Hardwired 2-in-1 Carbon Monoxide and Natural Gas Smart Alarm with Battery Backup (MCN108)

USI 10-Year Bedroom 2-in-1 Universal Smoke Sensing Smoke and Fire Alarm (MIB3050S)

Smoke Alarms & Accessories

Universal Security Instruments USI-1204 Hardwired Ionization Smoke and Fire Alarm with Backup Battery

Universal Security Instruments Hardwired 10 Year Tamper Proof Permanent Power Sealed Battery 3-in-1 Universal Smoke Sensing & Carbon Monoxide Combination Alarm, Model MIC1509S,white, Corded Electric

First Alert Ionization/Photoelectric Dual Sensor Smoke Detector 1039828 – Good's Store Online

Smoke Detector Too Sensitive: Three Ways to Fix It

Universal Security Instruments Hardwired Ionization Smoke and Fire Alarm with Battery Backup, Model 5304 : Electronics

USI-5204 and USI-2795 - Wired-In 120 Volt Ionization Smoke Alarms