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ADJUSTABLE DUTY CYCLE OUTPUT: Set the pulse width modulation signal from 5% to 100% using the side buttons, giving technicians controlled output for testing PWM-driven automotive components and circuits. BROAD POWER PROBE COMPATIBILITY: Designed to work with Power Probe testers featuring a 4mm banana jack, including The Maestro, PP4, PP3 and PP3EZ, turning a standard probe into a PWM signal generator. PLUG AND PLAY INSTALLATION: Remove the existing probe tip and insert the adapter into the 4mm jack for fast setup, creating a simple add-on solution that integrates easily into your normal diagnostic workflow. TARGETED COMPONENT TESTING: Ideal for diagnosing PWM-controlled circuits such as radiator cooling fans, lighting and selected vehicle control components, helping locate faults and support repair decisions. CLEAR LCD FEEDBACK: Compact adapter with backlit LCD display shows the active duty cycle percentage for quick visual confirmation during testing, adjustment and live component activation procedures.