Universal Sensing Plus®2-in-1 Smoke & Fire Alarm with 10-Year Tamper Proof, Permanent Power, Lithium-Free, Sealed, Battery Backup Conforms to UL Std. 217 8th Edition: Item No. USI/SM/HW10YR & USI/SM/HW10YR/3
- USI 2-in-1 Smoke & Fire Alarm offers dual-sensor protection Product Details for USI/SM/HW10YR & USI/SM/HW10YR/3
- USI 2-in-1 Smoke & Fire Alarm offers dual-sensor protection Setup Guide for USI/SM/HW10YR & USI/SM/HW10YR/3
- USI 2-in-1 Smoke & Fire Alarm offers dual-sensor protection Troubleshooting Guide for USI/SM/HW10YR & USI/SM/HW10YR/3