Just as I was departing to the practice area while keeping an eye on the Shield, it goes red.  That's it, I've got a confirmed exhaust leak.  I immediately pull a tight right to re-enter the pattern while closing the heat control and dumping some fresh air in.  On downwind I got it to drop back to 3 amber flashes and finished out the flight with the amber flashes reducing.  After the flight, I realize I've got a bit of a headache that I know came from the CO levels.  After securing my plane, I reached over and yanked that stupid CO dot off the panel, which crumbled onto the ground.  THANK YOU for this wonderful little device.

R.B.

The app worked well.  In my own aircraft it was interesting to see small peaks of CO in the cockpit during takeoff run and when the apparent wind is in certain direction relative to the exhausts (when taxiing).  Only comments were that it would be useful to have a data logging function on the app so that you can scroll back and see where the peaks in CO were relative to time.  That would be useful - but overall, super product.

J.H.

This morning we launched from Missoula in Miss Montana enroute Normandy to participate in the 75th anniversary of DDay celebrations. Onboard we have an Aithre Shield CO monitor developed by a fellow RV10 builder. We love it, the ability to move it around in our large DC3, read and store results in the app, and have confidence our 75-yr old airplane is safe. Great product.

B.D.