Product features: 1: Suitable for devices such as Murphy electronically controlled engines 2: Can display standard parameters of engine and transmission ECU 3: Display dynamic faults and historical faults in text format, and equipment faults are clear at a glance Convenient and fast: Installation, wiring and equipment are extremely simple and can be easily used without programming. Parameter display: engine speed, engine running hours, fuel consumption rate, system voltage, engine load percentage at current speed, coolant temperature, oil pressure, fuel economy, throttle position, engine intake manifold air temperature, current fuel consumption, transmission oil pressure, transmission oil temperature, transmission gear, dynamic fault code, historical fault code (if supported), engine configuration parameters