Kidde Battery Operated Carbon Monoxide Alarm with Digital Display C3310D.

New open box Kidde Battery Operated Carbon Monoxide Alarm with Digital Display C3310D . no original box. no instructions. -Sealed-in 10-year lithium battery -Automatically activates when attached to bracket -CO detector with alert modes & 2 LED lights that pulse for power & CO detection -Green LED flashes every 30 seconds -Red LED will pulse when CO detected alarm pattern will sound -Electrochemical sensing technology - CO alarm detects the presence of carbon monoxide gas, 85 decibel alarm -Protects during a power failure - CO detector operates on 3-AA batteries -Easy to read digital display - allows for easy viewing of carbon monoxide levels -Peak level memory -Low battery signal -Test/Reset button