The ignition coil tester is a drive designed for the functions required for automotive maintenance, with simple operation, rich functions, easy-to-use diagnostic instruments that can quickly identify component problems. The main functions include PWM drive output, stepper motor drive, PWM signal output, voltage, resistance measurement.  Features: Versatile Testing Capabilities: This product can drive and test various parts, including ignition coils, fuel injectors, solenoid valves, fuel metering valves, idle stepping motors, instrument stepping motors, headlight follow-up steering stepping motors, and urea pump motors, to meet the testing needs of a variety of automobiles, making it suitable for a variety of automobiles. High Precise Simulation: The Hall signal with adjustable output frequency, amplitude, and duty ratio can accurately simulate various duty cycle sensors such as air conditioning pressure sensors and air flowmeters. Enhanced Safety Features: The powersupply voltage ranges from 12 to 24V, with reverse connection and overcurrent protections to ensure the safety of the equipment during use. Wide Adjustment Ranges: The electromagnetic coil driving current ranges from 0 to 3.5A, the output frequency ranges from 1HZ to 100KHZ, the duty cycle adjustment is 1percent -100percent , and the adjustable voltage is 1.25V-11.5V, catering to different testing requirements. User-Friendly: Easy to operate, all parameters are adjustable, making it easy to operate even for those without professional knowledge. Specifications: Name: Ignition Coil Tester Material: ABS PWM drive: Solenoid valveslgnition coilSolenoid Injector Step motor drive: Idle motor nstrument panel motorUrea pump step motor PWM signal drive: 3-wire ignition coil3-wire Urea pump motorElectronic fan Signal output simulation: Air conditioner pressure sensorRail pressure sensorsFlow sensors Multimeter function: Resistance measurementVoltage measurement Power input: 9-26V100W  Power output: Max 2.5A current VADJ output: 1.25-14.5V, max 1.5A current PWM drive: 1-100KHz frequency0-100percent dutymax 3A current PWM signal: 1-100KHz frequency0-100percent duty1.25-14.5V VPP Step motor: Max 1.5A OTR: 0-55 celsius Item size: 165 * 96 * 26mm 6.50 * 3.78 * 1.02in Package size: 150 * 100 * 60mm 5.91 * 3.94 * 2.36in Package weight: 550g 1.21lb Packing List: 1 * QDB-A3 Ignition Coil Tester 1 * Power Cable 3 * Test Connection Cables 3 * Single Plugs 1 * Idle Speed Stepper Motor Plug 1 * Stepper Motor Welding Cable