The Martel 80036 set of three thermocouples includes one each type R/S thermocouple, type N thermocouple, and type B thermocouple suitable for use with Martel temperature calibrator models PTC- 8010, MC-1010, TC-100, MC-1210, DMC-1410, 3001, MasterCAL 990 (calibrator sold separately). Cable terminations have a standard mini-connector on one end and bare leads on the other end