HP/Philips Adult ear Clip sensor , HP 12PIN , L=3M .

 Direct connect Compatibilities: Suitable for Philips 78352A/C,78354A/C,78834C, Merlin:1020A,1024A,1025A/B,1205A,1350B,1722A/B,1732A/B,2475B; Mirable  system,Viridia A1/A3 (Direct Connect )