... Diameters, lengths, sheath material, lead lengths and sensor material are just a few of the variables that ... controller from the thermocouple sensor. The metal that the sensor is constructed of determines the type of thermocouple manufactured. ... Assemblies: Straight, L Type , Rotating type, Inmelt Bolt type, Pencil type, Washer, Holder with Spring. Rotating Type, Adjustable Types etc. ...