Tested Most Reliable by Lawrence Berkeley National Laboratory (LBNL).*
(click to download summary paper of these results);
LBNL Report LBNL-40556 (click to download entire report)*
Quantum Group Inc. manufactures all its carbon monoxide sensors in San Diego, CA.
BIOLOGIX Residential Carbon Monoxide Alarm Model B2011
Regular price: $55.00
At this time all our CO alarms are battery operated but we do make the COSTAR® model 12-24 system carbon monoxide detector, which is hardwired and backed up with a system battery.