Hall Effect Crankshaft Position Sensor
Hall Effect Crankshaft Position SensorHall Effect Crankshaft Position Sensor

Hall Effect Crankshaft Position Sensor


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SKU: HallSensor Categories: , Brand:

Product Description

Hall effect crankshaft or camshaft position sensor. We’ve tested this with our 6.75″ and 8.25″ trigger wheels. We were able to get a rock solid reading at over 19,200 RPM, which is as fast as our test rig could spin the trigger wheel. Runs off 5 to 24 volts, and gives a nice square wave so there’s no variable voltage issues. Has a 12 inch long, 3 wire pigtail. Here’s what the wires do:

  • Red – Supply voltage; connect to either VREF or 12 volt switched power.
  • White – Output signal. On a MegaSquirt, connects to pin 24. We just set our MegaSquirt up for the VR conditioner and it works great. V3.0 MicroSquirts can also do this, but older MicroSquirts will need to use the Hall effect input.
  • Black – Ground.

If you have the newest revision of our wiring harness, you can just tee the red wire on the sensor into the red harness wire, and the black and white wires connect to the respective black and white wires inside the shielded RPM input wire. Red to red, black to black, white to white – simple and easy to remember.


  • Operating voltage: 4.75 to 24 volts
  • Maximum overvoltage and reverse voltage: +27 to -25 volts
  • Maximum output current: 20 mA
  • Maximum frequency: 15 kHz
  • Temperature range: -40 to +125 degrees C
  • Maximum air gap: 5 mm
    • Note that this is an absolute maximum. For most trigger wheels, operation is most reliable at a 1.0 to 1.5 mm air gap.
  • The trigger wheel must be at least 2 mm wide, the teeth and gaps at least 2 mm wide, and the gaps at least 2 mm deep.

DIYAutoTune.com Hall effect sensor
Note: We also carry a threaded body version – click HERE.


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Will I need to add a pullup to use this sensor?

  • No, this sensor has a voltage pullup already on the signal wire.