KILN - Heat controller
Kiln heat controller is a thermocouple which consists of a porcelain sheath that is passed through the hole at the side of your kiln. The length of the sheath depends on the width of the wall of your kiln. It transfers the temperature of the kiln on to the pyrometer, which interprets it into digits. It can be attached to a temperature controller and depending on its quality, it can completely control the process of firing, from beginning to end.