• Front battery door makes replacing the battery easy
• Tamper resist locking feature deters alarm theft
• Alarm memory flashes red LED indicating which unit was the initiating alarm in interconnected system
• Battery backup provides protection in case of power failure.
• Interconnectable with up to 24 devices (of which 18 can be initiating) including smoke, CO and heat alarms.

Easy Installation

• Front battery pull tab allows battery activation without removing alarm from mounting bracket
• Large mounting base makes mounting easier, protects surface paint from dirt and covers imperfections
• Pre-stripped wiring harness with easy off cap does not require stripper tool. Tinned strands increase conductivity and wire nut grip

Fewer Callbacks

• One button design for easy operation and less confusion. Operates Smart Hush„¢ and alarm test
• Battery run down protection will shut down alarm memory when AC power is not present, reducing low battery chirp
• Dust cover protects sensor from contaminates during construction reducing nuisance alarms

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• Hard-Wired Combination Smoke and CO Alarm with Battery Back-Up
• Voice Warning - Warns of hazard by announcing Fire! or Warning, Carbon Monoxide.
• Front load battery for easy replacement
• 10 year alarm life, 10 year warranty ” alarm lasts 40% longer!
• End of Life Hush®
• Intelligent Sensor Technology added ” reduces nuisance alarms
• Similar design to i4618 Smoke Alarm for uniform aesthetics across installations requiring both Smoke and Combo Alarms
• Test/Reset Button
• UL 2034 & 217 Listed
• Battery Safeguard
• 10-Year Warranty
• Includes 2AA batteries

• No battery replacement for the lifetime of the alarm
• Powered by a tamper-free sealed lithium power supply
• Self-Activation automatically activates unit when attached to bracket
• Smart Hush silences alarm in non emergencies
• Money-saving alarm is great for homes and rental properties

Easy Installation

• Front battery pull tab allows battery activation without removing alarm from mounting bracket
• Large mounting base makes mounting easier, protects surface paint from dirt and covers imperfections
• Pre-stripped wiring harness with easy off cap does not require stripper tool. Tinned strands increase conductivity and wire nut grip

Fewer Callbacks

• One button design for easy operation and less confusion. Operates Smart Hush™ and alarm test
• Battery run down protection will shut down alarm memory when AC power is not present, reducing low battery chirp
• Dust cover protects sensor from contaminates during construction reducing nuisance alarms

User-Friendly Features

• Tamper resist locking feature deters alarm theft.
• Alarm memory flashes red LED indicating which unit was the initiating alarm in interconnected system
• Interconnectable with up to 24 devices (of  which 18 can be initiating) including smoke, CO and heat alarms