Labfacility type k thermocouple button magnet housing labfacility xe 3460 001 this k type thermocouple is constructed from a thermo element located in a 12 7mm diameter button magnet the thermocouple has a spring loaded junction that ensures a good contact and the sensor has a sensing range of 50 deg c to 250 deg c a 1m captive cable is terminated bu a miniature plug labfacility xe 3460 001 button magnet type k thermocouple with miniature plug