Autometer Z series Universal Pyrometer Gauges feature high performance movements doubled with understated great looks that make this series the perfect choice for low-profile instrumentation. These gauges provide you with information regarding the temperature of the engine through its exhaust fumes, telling you if there are engine problems arising, such as air intake blockage or overloading. They are designed with black faces, black dials, around the dial lighting, and red pointers for maximum visibility.