Nonin 9550 Onyx II Finger Pulse Oximeter

The Nonin 9550 Onyx II Finger Pulse Oximeter is the result of years of clinical experience. Incorporating the very latest in electronics, the Onyx II is simple to use, yet delivers results that can be relied upon time after time ensuring it is trusted by clinicians worldwide. The Onyx II builds on the foundations laid by Nonin's innovative Onyx Finger Pulse Oximeter.

The Onyx II's new enhanced design features an enclosed spring and wider viewing angle with easy battery access. It is rugged and reliable and can be used with confidence even in the most demanding environments.

The Nonin Onyx II has a 3 year warranty and has been designed to withstand shocks.

It has been approved by the US Military for use onboard helicopters.