Long-Term Accuracy of Qube's Methane Sensor Calibration: A Two-Year Study

Executive Summary

• Qube's metal oxide (MOx) sensors maintain consistent calibration and performance throughout a two-year operational period, demonstrating accuracy within 1 PPM for methane detection in industrial environments.

• The company's patent-pending auto-baselining algorithm successfully compensates for sensor drift without human intervention, automatically adjusting to environmental changes and sensor aging to maintain accuracy.

• Lab testing of 26 field-deployed sensors showed excellent accuracy, with error rates ranging from -7.64% to +1.36% across various methane concentrations (10-100 PPM), validating the robustness of the calibration process.

• The study confirms that Qube's platform enables cost-effective, large-scale deployment for industrial methane monitoring, with customers typically achieving 50-90% reduction in emissions through early detection and process improvements.