Philips Medical EKG lead set snapCompatibility:Use with Philips Instrument M1700A,Website:http://www.upnmed.org,M172A,Philips Trim, Trim I, Trim II (989803130101), Trim III, PageWriter TC30, PageWriter TC50, PageWriter XLi M1700A, PageWriter XLE 1702A, Touch EKG MachinesOEM Code:989803129161, M1713B, M1716B, M1702A