The Lincoln 357067 thermostat capillary serves as a temperature sensing element, typically made of a flexible and heat-resistant material, allowing it to accurately measure the temperature inside the oven. Designed with a specific length and flexibility to reach different areas within the oven cavity, ensuring precise temperature readings regardless of the location of the thermostat. Lincoln 357067 High Limit Thermostat Capillary is equipped with a temperature adjustment control mechanism that regulates the flow of gas or electricity to the heating element, maintaining the desired temperature setting for cooking or baking.