USI MDS107 Hardwired 2-in-1 Universal Smoke Sensing (IoPhic) Smoke and Fire Alarm with Battery Backup
Universal Security Instruments Hardwired Combination Smoke and Carbon Monoxide Detector in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com
USI MDS300-401 Universal Smoke Sensing (IoPhic) Smoke and Fire Alarm with CO and Natural Gas Alarm
USI 3-in-1 Smoke Carbon Monoxide and Natural Gas Alarm - MDSCN111