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✅ 10-Location Control – Add up to 10 companion switches (no wiring needed)
44" W × 2
Voltage Rating: 600V AC / 300V DC
Tapered nose for tight spaces
Voltage: 120V AC
Battery Carbon Monoxide Alarm ✅ 10-Location Control – AddKey Features Most Accurate CO Detection: Uses electrochemical sensor technology (industry leading precision) End of Life Alert: Audible chirp signals when replacement is needed (~5 7 years) Smart Silence Controls: Alarm silence: Temporarily quiet false alarms Low battery silence: Mute chirps for up to 8 hours Easy Installation: Includes 9V battery & mounting hardware (no wiring required) Technical Specifications Brand: First Alert Style: 1 Pack