1 oximiter probe plus 2 disposable single use probes The Nellcor OxiSensor II D-25 Pulse Oximeter Finger Sensor Probe is a medical device designed for cardiology use. It features a 9-pin clip for secure attachment to the pulse oximeter, with a single lead wire end. The unit is compact and intended for healthcare professionals in various settings. Perfect for monitoring oxygen saturation levels, this pulse oximeter sensor is a reliable and essential tool in medical care.