(2 pack) Kidde P3010K Combo Smoke and Carbon Monoxide Alarm, 10-Year Sealed Lithium Battery, White

The Kidde P3010K combo smoke and carbon monoxide alarm gives you two types of protection in one indoor unit. It uses photoelectric smoke sensing and electrochemical carbon monoxide sensing, plus Smart Hush to temporarily silence nuisance alarms for about 10 minutes when needed. The sealed lithium battery is designed to last 10 years, so there is no battery replacement during the alarm's life. An 85 dB alarm, red LED alert, and test/reset button help make status checks simple. The unit also activates automatically when attached to the mounting bracket and gives an end-of-life warning when it is time to replace the alarm.

• 2-in-1 alarm combines smoke and carbon monoxide detection in one white unit for indoor use.
• Sealed-in lithium primary battery is included and provides a 10-year battery life.
• Smart Hush button can temporarily silence nuisance alarms for approximately 10 minutes, and the same test/reset button checks alarm circuitry.
• Rapidly flashing LED shows if the alarm has sounded since the last test/reset, and the red LED blinks with the alarm sound.
• End-of-life warning chirps every 30 seconds when replacement is needed; the indication can be silenced for 3 days at a time for up to 30 days.
• UL217 and UL2034 listed and backed by a 10-year limited warranty.