Welch Allyn. M540, 6400. Accutorr Plus, Accutorr V, DPM Models, PM Models, Passport 2, 2LT, Spectrum, V12, V21, VS 800, Accutor V, EPM4, Duo, Trio, XG, Passport V. Masimo DB9 Compatible Short Connect SpO2 Sensor Adult.
eBay