The compact and lightweight DC400A is a complete fuel quantity system test set for use on aircraft that have probes with integral diode rectification, commonly called DC fuel quantity systems. Completely self-contained and portable, the DC400A is lightweight and as an internal battery-powered DC fuel quantity system. The tester is specifically designed, when used with the proper Adapter Module, to meet the requirements for testing and calibration of a wide range of Aircraft DC Fuel Quantity Systems.

• Completely self-contained 
• Tests all components and wiring in the Aircraft's DC fuel quantity system
• Provides direct digital LCD readout of probe capacitance
• Interchangeable adapter modules dedicated to specific aircraft
• Capability to bench check Aircraft fuel quantity system components
• Digital readout of quantity system output in (volts, pounds, ratio, etc.)
• State of the art low battery drain circuitry
• LCD prompt for low battery condition
• Short circuit protected LO-Z; overload caution presented on the LCD
• Rugged all metal, weather-proof carrying case with removable cover