The Kidde C3010D is a carbon monoxide alarm with a digital display and a 10-year battery. The C3010D uses electrochemical sensing technology to give you an early warning when carbon monoxide is detected. Its digital display shows the level of carbon monoxide the unit is sensing. The unit updates this reading every 15 seconds. With its 10 year Sealed-in Lithium Batteries -Unit will continue to operate for 10 years. Alerts user to replace the unit after 10 years of operation.
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