HP ECG safty Lead set, 5-Lead, IEC, 3ft, AA 2PIN/ Snap OEM Part.: M1635A Compatibilities: Above items Use with Philips Medical System: 78352C, 78354C, 78834C, M1001A/B, M1002A/B, M1722A/B, M1723A/B, M2475B, M3000A, M3001A, M 4735A Model NO.: MC003C-5 HP Company: HK Greatmade Tech Ltd.