The MD-667P is a portable oximeter that non-invasively measures blood oxygen saturation (SpO₂) and pulse rate.
SpO₂ is displayed in %, and pulse rate in bpm. The LCD screen shows both numerical values and waveforms, helping users assess signal quality at a glance.

It supports both AC power and rechargeable batteries, and includes up to 72 hours of data storage with trend graph display. Data can be transferred to a PC via USB using SmartLinkI software for further analysis.