More features

• 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