The Gossen Metrawatt METRAHIT 27EX AIRBUS is a digital multimeter designed for use in the aviation industry. It is a handheld, battery-powered device that can measure a variety of electrical parameters, including voltage, current, resistance, and capacitance. The METRAHIT 27EX AIRBUS is also equipped with a number of features that make it ideal for use in the aviation industry, such as a built-in flashlight, a backlit display, and a rugged construction.