Join a global network of leading universities using VO2 Master to power field and lab research, teach applied physiology, and standardize testing – backed by peer-validated accuracy and …

Step into the future of metabolic testing with the VO2 Master. Designed for unparalleled portability, this lightweight, wireless device provides lab-quality measurements for VO2, RMR, …

See what makes VO2 Master unique: ultra-compact, 100% wireless VO₂ & RMR testing, validated metrics, and seamless integrations for labs, teams & coaches.

Shop VO2 Master: Analyzer, masks, and accessories. Explore portable, wireless VO₂ and RMR testing gear for labs, teams, gyms, and individuals.

Set up VO₂ and RMR testing in your facility. Learn requirements, workflows, and best practices to run reliable assessments with VO2 Master. Book today

See how VO2 Master works from setup to results. Portable, wireless VO₂ and RMR testing with simple workflows for labs, teams, and gyms.

Real reviews by real coaches, athletes and military personnel. VO2 Master—the portable, wireless VO₂ and RMR testing system trusted by coaches, labs, and gyms.

Answers to common questions about VO2 Master: setup, wireless testing, metrics, calibration, cleaning, integrations, and support.

Co-founders, Peter O’Brien and Dr. Andrew Sellars set out to improve portability and accessibility of VO2 Max testing and created VO2 Master.

Portable, wireless VO₂ and RMR testing for teams and coaches. Build thresholds, zones, and evidence-based programming with VO2 Master.