PWM Probe (20A)

The Ultimate Tool for automotive electrical diagnostics! 

Modern vehicles rely on sophisticated electronic solenoids, sensors, actuators, and PWM-controlled systems. Troubleshooting these components requires more than a multimeter. The PWM Probe 20A combines voltage testing, resistance measurement, direct power supply, and programmable PWM simulation into one rugged, intuitive tool. Whether you're a professional technician or a serious DIYer, this device saves time, reduces guesswork, and delivers reliable diagnostics every time.

Exclusive Invention

v  Live Adjustable PWM – simulate real-world signals to test components under load.

Functions

1. Voltage Test – measures DC voltage up to 100V.

2. Resistance Test – three auto-ranging scales: 0.01Ω–20Ω, 0.1Ω–200Ω, 1Ω–2000Ω.

3. Direct 12V Power Feed – provides battery power for component testing.

4. PWM Power Output – 12V, 20A max, adjustable frequency (7–1000Hz) and duty cycle (5–95%).

5. Timer Control Test – automated testing from 1 minute to 6 hours.

Features

v  Reverse Polarity Protection – no damage if connected backwards.

v  Self-Recovering PTC Fuse (20A) – automatically resets after a short-circuit event.

v  Input Voltage Monitoring – audible alarm if battery voltage drops below 12V.

v  Over-Voltage Protection – prevents damage during voltage measurement up to 100V DC.

v Automated Testing – set parameters and let the tool operates at with enabled timer-controlled solenoid tests.

v  Data Logging – stores up to 100 test results for comparison and reporting.

v  All-in-One Tool – replace multiple devices with one professional-grade unit.

v  Data Memory – stores 100 test results with recall function.

v  Temperature Monitoring – external sensor included (°C/°F selectable).

Benefits

For Professional Garages & Technicians:

v  Faster Diagnostics: Quickly test fuel injectors, EVAP solenoids, boost control solenoids, and more without removing them.

v  Accurate Simulation: Replicate OEM PWM signals (7–1000Hz, 5–95% duty cycle) to verify component operation.

v  Prevent Comebacks: Use the timer test to stress-test components over time, ensuring they won’t fail shortly after repair.

v  Professional Reporting: Store test results (T-001, T-002, etc.) to show customers proof of operation or failure.

For DIY & Enthusiasts:

v  No More Guesswork: Easily check if a solenoid or sensor is working without expensive dealership tools.

v  Learn & Experiment: Understand how PWM systems work by adjusting frequency and duty cycle in real-time.

v  Safe & Protected: Built-in short-circuit and reverse-polarity protection prevent costly mistakes.

v  One Tool, Many Uses: Use it as a power supply, voltmeter, ohmmeter, and signal generator.

Safety provisions

The PWM Power Probe is designed with multiple layers of protection and complies with international standards.

Frequently Asked Questions (FAQ)

Q1: Can this test fuel injectors?

A: Yes. Use PWM output mode to simulate the injector signals and measure current draw of a circuit.

Q2: Is it suitable for diesel systems?

A: Absolutely. It can test glow plug relays, EGR solenoids, and fuel pressure regulators.

Q3: How do I update the firmware?

A: The device is ready to use. Future update is not necessary.

Q4: What if I overload the output?

A: The PTC fuse will self-reset once the overload is removed and the unit cools.

Q5: Can I use it on 24V systems?

A: No. Input is designed for 12V only. Use a regulated 12V source if testing 24V vehicles.