MNB-3 Automotive Sensor Simulator – Car Signal Generator & ECU Tester Repair Tool

This is an MNB-3 automotive sensor simulator – brand new, still sealed in its packaging.

It's a handy little tool that generates sensor signals to test ECUs, sensors, and wiring without needing the actual sensor hooked up.

Great for diagnosing tricky electrical issues, checking if your ECU is responding correctly, or bench-testing components.

No manufacturer part number listed, and it's unbranded – but it's a solid budget tool for any DIY mechanic or pro shop.

Comes with a 1-year warranty.

Made in China.

No UPC.

If you're tired of guessing whether a sensor or the ECU is bad, this simulator helps you figure it out fast.