Guardian Avionics 551-101-002: Everything You Need To Know – Specifications, Comparisons, Manuals, And Troubleshooting
Guardian Avionics 551-101-002 Information The Guardian Avionics 551-101-002 is a panel-mounted digital carbon monoxide (CO) detector that is designed to fit in a standard 2.25" (2 1/4") instrument panel clock space. It is TSO (Technical Standard Order) certified for use in both FAA-certified and experimental aircraft. Introduction Carbon monoxide is a colorless, odorless gas that can be deadly. It is produced by the incomplete combustion of fuel, such as gasoline, diesel, and propane. CO can build up in the cockpit of an aircraft, especially if there is a problem with the engine or exhaust system.