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 4.0 and Aithre Shield EX 2.0 devices pair with the Aithre Connect application to provide an instantaneous reading and a 15 minute historical trend graph. 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 also determined using an on-board pressure altimeter. Voice and notifications are provided regarding a drop below 500 psi, flight above levels requiring FAA oxygen, and flight above user-defined levels. These Siri notifications are also audible via your aviation headset when also paired to your iOS device.

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

The Aithre Shield EX carbon monoxide detectors are also compatible with Garmin G3x, Dynon Avionics, and Advanced Flight Systems.

What’s New

Version 3.03

Added graphs for GPS altitude and speed in line with carbon monoxide data over time for carbon monoxide analysis. Also added 4 hour history data that is saved in long-term memory. Further support added for the newly released Aithre Altus portable oxygen tank monitor device.

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.
11.6 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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