The Aithre Connect application is used to pair with Aithre devices to monitor carbon monoxide and portable oxygen tank pressure levels in the field of aviation. The Aithre Shield EX series are simultaneously compatible with iOS & Garmin G3x, Dynon Avionics, MGL, and Advanced Flight Systems.

The Aithre Shield 4.0, Aithre Shield EX 2.0, and Aithre Shield EX 3.0 devices pair with the Aithre Connect application to provide an instantaneous reading and a 15 minute trend graph. Additionally, four hours of history is stored. Voice and popup notifications provide alerts when the 2ppm, 10ppm, 50ppm, or user-defined thresholds are crossed. When your iOS device is also paired with your aviation headset, the Siri voice notifications are audible in conjunction with radio communication. The Aithre Shield devices are sensitive from 0-255ppm with a response time of 30 seconds. They require no recalibration for 10 years due to advanced fuel-cell type electrochemical sensors.

The Aithre Altus device pairs with the Aithre Connect application to provide oxygen tank pressure readings on your iOS device. In addition to discrete pressure readings, there is also a 15 minute historical trend provided along with a use rate and time remaining indication. Pressure altitude is determined using an on-board pressure altimeter. Voice and notifications are provided regarding a drop below 500 psi, flight above levels requiring FAA oxygen, flight above user-defined levels, and oxygen shutoff on landing. These Siri notifications are also audible via your aviation headset when also paired to your iOS device.

The Aithre Shield EX 3.0 additionally wirelessly communicates with the Aithre Altus to obtain oxygen tank pressure information wirelessly. The EX 3.0 then provides this psi data along with carbon monoxide data to locally coupled avionics systems, including Garmin G3x, Dynon, and Advanced Flight Avionics.

The Aithre Illyrian is a new headset mounted pulse oximeter that can be individually worn by pilots, passengers to provide real-time continuous wireless pulse oximeter data to the Aithre Connect app. The pulse oximeter data for each passenger is output in graphical and trend form to allow the pilot to seamlessly monitor health data of all passengers during flight. The Illyrians will be demoed at EAA Airventure 2019 and be available for sale within 3-6 months.

A hypoxia risk indicator is provided to give a snapshot of hypoxia risk. Quizzes are provided at regular intervals to test the pilots ability to solve simple math problems over time. Artificial intelligence applies disparate factors, including carbon monoxide levels, pressure altitude, and quiz results to provide the graphical indicator of hypoxia risk.

Aithre devices are available at Sporty's, Aircraft Spruce, Aerox, Aerotronics, Gulf Coast Avionics, Pacific Coast Avionics,, Avian Flight Center, and Sarasota Avionics as well as via the website.

What’s New

Version 4.6

Improved layout and navigation. Added additional graphs for carbon monoxide vs temperature, altitude, and speed. Added data storage support for future account access to historical flight data.

Ratings and Reviews

3.7 out of 5
3 Ratings

3 Ratings

Kris9297 ,

Update: Lightning in a Bottle

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.

PhD in Aviation Human Factors and Safety

Developer Response ,

Chris, thanks for your feedback. We released a new update today pending review by Apple.

Added ad­di­tion­al Siri and pop­up no­ti­fi­ca­tions to now in­clude: con­nec­tion sta­tus, dis­con­nec­tion sta­tus, car­bon monox­ide warn­ings above 2, 10, and 50 ppm, oxy­gen tank de­ple­tion be­low 500 psi, pres­sure al­ti­tude greater than 12500 ft and 15,000 feet. Also added a user set­ting for a cus­tom car­bon monox­ide thresh­old warn­ing, which is pro­vid­ed via Siri and pop­up notif­ication. Ad­di­tion­al­ly added a user set­ting for a cus­tom pres­sure al­ti­tude warn­ing thresh­old, which is pro­vid­ed via Siri and pop­up notif­ication. These ad­di­tion­al user set­tings and Siri no­ti­fi­ca­tions en­able en­hanced safe­ty in flight and can be pro­vid­ed via the avi­a­tion head­set when the head­set is paired to the iOS de­vice run­ning this ap­pli­ca­tion.

Also added ad­di­tion­al sup­port for pres­sure al­ti­tude de­ter­mi­na­tions, FAA oxy­gen re­quire­ments that are au­to­mat­i­cal­ly de­ter­mined based on pres­sure al­ti­tude, flow rate, tank time re­main­ing, and ad­di­tion­al func­tions with re­spect to Aithre Al­tus por­table oxy­gen tank man­age­ment.


Aithre, Inc.
18.7 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2019 Aithre, Inc


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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