This QDB-3A Drive Auto Ignition Coil Tester Motor Instrument Car Fault Detector is a versatile tool that can simulate an air conditioner pressure sensor or rail pressure sensors with a VADJ output of 1.25-14.5V and a maximum current of 1.5A. It features a PWM drive of 1-100KHz frequency and 0-100% duty, with a maximum current of 3A. The tester is suitable for use with a 3-wire ignition coil, 3-wire Urea pump motor, or electronic fan. It also includes a multimeter function for resistance and voltage measurement. The tester is made of ABS material and has an OTR range of 0-55℃. It comes in a package size of 150 * 100 * 60mm and weighs 550g.