Straight Up Solid Hall Sensor Module For Speed Tracking And Revolution Counting With Magnetic Trigger Switch And Lm393 Comparator Board For Dc 5V Power And No Hassle Build Projects

High Precision Hall Sensor Unit For Speed Monitoring
✔️ LM393 comparator base, 5 volt drive, fine tune sensitivity knob.

This compact hall sensor module delivers steady digital pulses for accurate speed tracking and revolution counting across maker rigs. Designed around a trusted dc 5v supply and equipped with a solid lm393 comparator board, it drops straight into your controller pins for clean square wave readouts. Compatible with KY-003, A3144, and SS441E designs, builders grab it for DIY motor tachometers and gear ratio monitors where wiring needs zero guesswork. Each order ships one pre tested unit wired for immediate breadboard or perfboard insertion.

✅ Onboard led gives instant voltage confirmation when triggered
✅ Four corner slots allow secure bolt down mounting on frames
✅ Variable resistor lets you dial in the exact switch distance
✅ Open collector layout ties direct to microcontroller gpio pins
✅ Sharp analog cutoff prevents false reads during vibration runs

Longitud total	32 mm
Board Width	11 mm
Altura total	20 mm

💡 How does a hall effect magnetic sensor improve continuous shaft rotation tracking versus mechanical switches?
The device captures passing field shifts without moving parts to wear out. Here is why builders trust it for steady data logging:
1. Non contact pickup avoids friction drag on high rpm motor spindles
2. Clean digital pulses sync perfectly with timer interrupts for real time rpm math
3. Sealed plastic housing blocks shop dust and coolant spray from ruining readings

✝️