USI smoke alarms are engineered for fast, accurate detection of smoke and fire, using advanced Sensing Plus® Multi-Criteria Detection to reduce false alarms from everyday activities like cooking. Available in both battery-powered and hardwired models, select models feature 10-year no-replacement batteries, voice alerts, and end-of-life indicators for reliable, low-maintenance protection. With options for interconnectivity and easy installation, USI smoke alarms provide trusted safety that’s smart, efficient, and built to meet the highest standards.