Hewitt Instruments

Based in Huntington Beach, California, Hewitt Industries is an industry-leading manufacturer of high-quality gauges and monitoring systems. Founded in 1955, the company specializes in developing innovative instrumentation for trucks, industrial machinery, and various other vehicles, including marine, aircraft, and off-road equipment. A pioneer in engine monitoring, Hewitt Industries designs a wide range of rugged products—such as pyrometers, turbo boost gauges, and pressure/temperature sensors—engineered to ensure reliability, performance, and durability in demanding conditions.