Labfacility pfa exposed junction fine wire thermocouples with miniature plug labfacility xe 3530 001 a type k thermocouple with a 5m long pfa insulated twin twisted lead having a conductor of 10315 solid wire a welded exposed junction guarantees a fast response and the thermocouple is fitted with a miniature plug ideal for test and development applications labfacility xe 3530 001 type k pfa twin twisted fine wire junction thermocouple