The AX300 and MX300 are medical oxygen analyzers manufactured by Teledyne. These tools provide flexible, and reliable performance in oxygen analyzing, using high-quality manufacturing techniques. These microprocessor-based monitor and analyzer are equipped with an LCD backlighting for easy viewing in low light conditions. These devices have RS-232 signal outputs for use in computers. They are also equipped with both audible and visual alarms for sensor disconnect. These models also feature an R-17MED oxygen sensor, which has two patented improvements that offer enhanced temperature tracking. The tools also guarantee CE, CSA, and FDA approvals.