Onyx II 9550

NONIN, the world leader in fingertip oximetry, has designed years of clinical experience into the Onyx II.

The electronics and sensor are incorporated into the world’s smallest fingertip oximeter, providing a cost-effective solution for spot-checks and short-term monitoring.

Onyx II- not just a new look. Superior performance and unparalleled reliability put vital signs within reach anywhere, anytime.

The Onyx II is ideal for use in any situation where a fast and accurate reading of blood oxygen saturation and pulse rate is needed. Never search for a pulse oximeter or sensor again.

9550 Brochure


Additional information

Oxygen saturation display range

(%Sp02): 0%-100%

Pulse Rate display Range

18-321 beats per minute( BPM)

Battery life

21 hrs of continuous operation using two AAA-size alkaline batteries calculated at 30 seconds per use