Kidde Carbon Monoxide Alarm Battery Operated Model #KN-COB-LP2 9CO5-LP2 Brand New Factory Sealed Use to help provide continuous monitoring of carbon monoxide levels Piezoelectric horn is rated at 85dB at 10 ft. Alarm will not sound if carbon monoxide levels are below 30 PPM Battery operated for uninterrupted monitoring during power outages Test/reset button tests the unit for proper operation and resets the alarm Operated by 2 AA batteries (included) Online only Carbon monoxide detector utilizes an electrochemical sensor to detect fire hazards and sounds an 85 db alarm when a hazard is detected Please refer to photos to access Items Condition Shipping Policy ? If you are International Buyer - contact us before buying Payment Policy ? Item will be shipped immediately on the same or next business day of receiving full payment Return Policy ? Items Condition is clearly stated in the description ? Actual Images of item are shown ? Returns ACCEPTED FOR 7 DAYS, BUT THE BUYER IS RESPONSIBLE FOR RETURN SHIPPING AND 15% RESTOCKING FEE If you have any problems or questions - contact us right away and we will do our best to resolve the problem. Massages are answered from 9:00 AM to 5:00 PM EST Monday through Saturday Good Luck and Happy Buying basement tools