Kidde Carbon Monoxide Detector with 10-Year Battery, Digital Display, 3 LEDs, Replacement Indicator, Peak Level Memory

Electrochemical sensor technology detects CO gas & sounds an 85-decibel alarm, Easy installation, no wiring needed: operates on a 10-year lithium battery, so it never needs replacing, plus detects during power failure, Digital display updates every 15 seconds & displays the level of CO presence, Conveniently designed & portable: simple to install on a wall of your home or place on a tabletop, 3 LEDs indicate: green = normal operation, red = carbon monoxide presence (sounded with an 85-decibel alarm), & amber = replace the detector, Peak Level 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 Certified, 10-year limited manufacturer warranty