Otis Instruments SGC-C (B) Carbon Monoxide Cockpit Monitor

I use the Otis CO detector in a single engine aircraft. It is very compact and feels well built.I have experienced exhuast leaks into the cabin of my aircraft in the past. Exposure to CO can make you ill and easily kill at higher levels of exposure. This unit works great. The audible warning alarm is loud enough to hear through my noise canceling, aviation headset. The digital display even shows single digit levels of CO that are below the alarm threshold, so you can monitor to see if you're getting even low level exposure. Comes with a sturdy clip and heavy duty velcro for a variety of attachment options.