Thermal profilers are temperature instruments or recorders that provide temperature profiles for furnaces, kilns, or other continuous thermal processes. Some thermal profilers are enclosed in an insulated case and can travel along with components in an oven or furnace. Thermal profilers are frequently used in surface mount technology (SMT) reflow ovens to monitor the soldering temperatures used in making printed circuit boards (PCBs). They meet a variety of quality standards and are available from many different suppliers.