Our Story
With happy customers on every continent, VO2 Master is realizing its vision as the new standard in VO2 analysis.
Available to everyone
Co-founders, Peter O’Brien and Dr. Andrew Sellars started their journey manually compiling and analyzing data from very restrictive, bulky, and often expensive testing equipment to find correlations between performance and human physiology.
The saying “you can’t improve what you can’t measure” embraced by Peter and Andrew would provide the necessary motivation to overcome the challenges that paved the foundation in providing an affordable solution that would ultimately become the VO2 Master Analyzer – Today’s standard in metabolic testing equipment.

Stop guessing, start assessing
Our mission at VO2 Master and what we truly believe, is providing a means to a healthier way of life and to bridge the gap between performance assessment and improvement.
Our history
Eleven years in the making
2013: Conception
VO2 Master started as a conversation between a computer programmer and a physician with a shared passion for coaching and testing endurance athletes.
Peter was hungry for more of a challenge than the University Computing Science Department could offer. Andrew was frustrated with the poor user experience typical of lab cart VO2 analyzers. Together, they dreamed of an assessment tool that could truly capture an athlete’s physiologic responses to real world situations. The goal was to close the massive gap between the static University based labs and the athletic experience on the road, the trails, the track, and beyond. The concept of the first portable, wireless, VO2 analysis device the world had ever seen was born.
Read more at UBC Maximizing Potential and Accelerate Okanagan’s Victory Lap.
2015: Research Breakthroughs
In 2015, VO2 Master collaborated on a successful research project with professors Kenneth Chau and Joshua Brinkerhoff from the University of British-Columbia, that resulted in a patent application.
This was the innovation accelerant that helped make VO2 Master a world leader in VO2 analysis and started the development of several more pending patents.
2016: Extensive User Validation
Patient years of beta user testing, product iterations, and validation ensured VO2 Master was ready to compete head-on with lab carts for VO2 analysis in weight management and human performance testing.
No compromise was made in delivering to coaches, researchers, and clinics the VM Pro – a portable, affordable, and easy-to-use metabolic analyzer. The democratization of valuable performance and health information is an inevitable trend of the 21st century.
2017–Present: Growth
With happy customers on every continent, including the likes of Nike, Trek, Adidas, and many national federations, coaching businesses, and fitness centres, VO2 Master is realizing its vision as the new standard in VO2 analysis.
Looking forward, we at VO2 Master are just getting started. There is so much great progress yet to be made, to make athletes faster, weight loss safer, and people more active.
Please do visit us in the beautiful Okanagan Region of British-Columbia, Canada should you ever find yourself in the area. We are an active group of triathletes, skiers, swimmers, and rock climbers, and always welcome good company.
Proven globally
Trusted worldwide by human performance professionals, VO2 Master’s patented innovation turns metabolic data into clear coaching decisions.

VO2 Master Analyzer
Measure what matters to your clients
Get the next level of performance and metabolic assessment in the world’s most portable, user-friendly, and affordable analyzer.
1. In some cases, the data required may not always be captured to support automatic ventilatory threshold identification. While every effort has been made to ensure the accuracy of the analyzer’s results, there may be situations where the data available to the analyzer is insufficient to identify the ventilatory thresholds correctly.
2. The VO2 Master Analyzer is designed to be used with compatible Garmin devices only. While every effort has been made to ensure that the VO2 Master Analyzer is compatible with a wide range of Garmin devices, it is important to note that not all Garmin devices may be compatible. To ensure that your Garmin device is compatible with the VO2 Master Analyzer, please refer to the list of compatible Garmin devices. Please note that the list of compatible devices may be updated from time to time, so it is recommended that you check the list regularly.
3. We offer a satisfaction guarantee on the VO2 Master Analyzer, subject to the terms and conditions outlined in the full description of the guarantee.
4. Please be advised that the VO2 Master Analyzer is sold subject to the terms and conditions of our warranty policy.
5. While our product may be used in many different locations and environments, it is important to use the product only in accordance with the Technical Specifications provided in the VO2 Master Product Manual. Using the product outside of its specified limitations or specifications may result in decreased functionality or may cause damage to the analyzer.
6. The VO2 Master Manager mobile app is capable of being used with additional compatible Bluetooth sensors. While every effort has been made to ensure that the VO2 Master Manager mobile app is compatible with a wide range of sensors and smart trainers, it is important to note that not all Bluetooth devices may be compatible. To ensure that your Bluetooth sensor is compatible with VO2 Master Manager, please refer to the compatible devices listed in the Compatible Sensors provided in the VO2 Master Product Manual. Please note that the list of compatible sensors may be updated from time to time, so it is recommended that you check the list regularly.
Product is not a medical device; it is not intended to diagnose, treat, cure, or prevent any disease. Consult your physician before starting any dietary or fitness programs.
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