Kidde Carbon Monoxide Detector, Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable

Electrochemical sensor technology detects CO gas, Easy installation, no wiring needed, detects during a power failure by operating on 2-AA batteries (included), Conveniently designed & portable: simple to install on a wall of your home or place on a tabletop, Green LED indicates power to the carbon monoxide detector, while an 85-decibel alarm & a red LED indicates the presence of carbon monoxide, Event Memory records the last time carbon monoxide was detected or when the unit was last tested, Test-Hush button makes it easy to test the carbon monoxide detector or temporarily silence the low battery chirp warning, UL listed with a 10-Year limited manufacturer warranty on the alarm only (not a battery performance claim). Warranty begins when the alarm is powered on. If that date is unknown, it should be assumed that replacement is needed.