DIYAutoTune Hall Effect Sensors

DIYAutoTune.com has sold several Hall effect sensors. Select your sensor from the list below to see the specifications for your sensor.

  1. Tabbed mount sensor
  2. New (red body) threaded sensor
  3. Old (silver body) threaded sensor

Tabbed mount sensor

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 sheilded RPM input wire. Red to red, black to black, white to white – simple and easy to remember.

Specifications

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

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.

Hall Sensor diagram

 

New (red body) threaded sensor

Hall effect crankshaft or camshaft position sensor. This is a new version, distinguished by its red anodized aluminum housing. Threads are M12 and mounting nuts included.  Runs off 5 to 24 volts, and gives a nice square wave so there’s no variable voltage issues. Has a 1 meter long, 3 wire pigtail. Here’s what the wires do:

Brown – Supply voltage; connect to either VREF or 12 volt switched power.

Black – 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. Note that this one requires a pull up resistor. This tees into both the supply voltage and the output signal wire. Use a 1K

Blue – Ground.

Be careful if you are switching to this from a previous version of our sensor. The wire colors do not match and a pull up resistor is required for this version.

Specifications

Operating voltage: 5 to 24 volts

Maximum overvoltage and reverse voltage: +30 to -24 volts

Maximum supply current required: 6 mA

Maximum output current sinking: 20 mA

Output type: Open collector

Maximum frequency: 15 kHz

Temperature range: -40 to +125 degrees C

Nominal air gap: 1.5 mm

Thread pitch: M12 x 1 mm

Overall length: 65.5 mm, not including wires

Package material: Aluminum

Sensor orientiation: Not directional

Recommended tooth size is a rectangle measuring at least 2.5 mm x 6.35 mm, with a 5.0 mm tooth height.

 

Old (silver body) threaded sensor

Threads are M12 and mounting nuts included.  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.

Blue – 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 blue wires connect to the respective black and white wires inside the sheilded RPM input wire. Red to red, black to black, blue to white – pretty straightforward with only one mismatched color.

Specifications

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 +85 degrees C

Maximum air gap: 1.5 mm (We recommend setting the air gap smaller, usually as tight as possible)

  • Note that our tabbed Hall effect sensor can use a wider air gap.

Thread pitch: M12 x 1 mm

Threaded length: 36 mm

Overall length: 46 mm, not including wires

Package material: Stainless steel

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.