Aithre Illyrian Smart Oximeter for Headset



Through various updates and Aithre's demonstrated commitment to safety and their product line, they have now achieved a wicked risk-mitigation solution to the carbon monoxide threat in the everyday general aviation pilot world.  Aithre didn't just talk about future improvements, they did something about it in quick fashion.  When it comes to CO awareness I trust my life and my family's lives to Aithre"

Kris, PhD in Aviation Human Factors and Safety, CFII/MEI, AGI

I'm very happy I got the Shield.  I'm learning a lot about the CO levels in my airplane, and I seem to notice a trend.  It seems to spike at high AOA and is at zero during cruise, event with the heater on.  That's a relief to know that I don't seem to have an exhaust leak, but possibly a door seal leak, or maybe just normal entry from the wing vent intake. Thanks again for a great product!"


I did collect some interesting data on Sunday.  During flight, cabin reads '0'.  During engine startup, I got one reading to 10ppm.  Closing my window air vents reduced this to 7ppm.  Slow taxi is 4ppm with the windows closed.  My door seals are REALLY bad, so I get plenty of fresh untainted air during flight.  Thank you again."


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.


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.


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.



Meet the Team

Jim Ruttler, President

Jim is the original inventor and founder of Aithre.  He is a patent attorney with a law degree, an MBA, and a bachelors in neurobiology.  Jim is also an instrument-rated pilot and RV-10 builder.

Zuzana Melherova, Vice-President

Zuzana has a degree in Mathematics from Vanderbilt University and has worked in finance and operations for twenty years.  She is an avid skier, gardener, and trail runner.

Jim Ruttler, Sr., Vice-President

Jim Ruttler, Sr., is a current jet pilot and retired F-4 and F-15 pilot with the USAF (Col.).  He has a bachelors and masters in electrical and systems engineering.  He is also a life-long golfer with an impressive handicap.

Jessica Stephens, Vice-President

Jessica Stephens, is a veteran trauma nurse with the U.S. Army with a nursing degree.  She is a gifted graphical artist and photographer and is an avid trail runner.  

Aithre, Inc.

971-3 Main Street
Ketchum, ID 83340

208 481 8310

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