CO detector
That’s the sensor tied to the GTN harness.
It has a useful interface with Garmin’s current GPS Xi-series navigators and select flight displays, plus it comes prewired for connection to the existing harness.
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Larry Anglisano
Editor in Chief Larry Anglisano has been a staple at Aviation Consumer since 1995. An active land, sea and glider pilot, Larry has over 30 years’ experience as an avionics repairman and flight test pilot. He’s the editorial director overseeing sister publications Aviation Safety magazine, IFR magazine and is a regular contributor to KITPLANES magazine with his Avionics Bootcamp column.