3.0m Compatible Pace Tech SpO2 sensor with round 6-pin connector. It is compatible with the following patient monitors: Pace Tech: Vitalmax 4000, Vitalmax 4100 without touch screen technology (1st version); Schiller: Tranquility; Choice: MMED 6000DP. Please check your monitor before ordering. Pace Tech monitors without touch screen technology can usually be identified by a yellow ring around the connector. Some Pace Tech monitors require a 7-Pin connector. SpO2 sensors for Pace Tech monitors without touch-screen technology or a blue/green ring can be found here.