Product Description: Coleman-Mach SA339BL Sealed Battery Carbon Monoxide Alarm, Black, Round
- Battery Operated RV Carbon Monoxide (CO) Alarms
- Sealed-In Lithium Battery - No Replacement Needed
- Conforms to ANSI/UL STD 2034
- Full Five Year Service Life
- Built-In Test / Hush Functions
- Always On - No Missing Batteries
- Meets RVIA/NFPA Requirements