BRK SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 12-Pack

BRK First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup, 5 Pack

First Alert BRK SMCO100 Battery-Operated Combination Smoke & Carbon Monoxide Alarm, 1-Pack

BRK SMICO100-AC Combination Smoke & Carbon Monoxide Alarm, Interconnect Hardwire Detector with Battery Backup, SMICO100-AC, 12-Pack

SMI100-AC Hardwire Interconnect Smoke Alarm with Battery Backup,

BRK Brands HD6135FB Hardwire Heat Alarm with Battery Backup

First Alert BRK 7010B Hardwire Smoke Alarm with Photoelectric Sensor and Battery Backup (3 Pack)

First Alert 9120B 120-Volt Wire-In With Battery Backup Smoke Alarm, 12-Pack

BRK Brands HD6135FB Hardwire Heat Alarm with Battery Backup by BRK Brands