Speed Sensor Hall-Effect HA-P2

This sensor is designed for incremental measurement of rotational speed (e.g. camshaft, crankshaft or wheelspeed).

Due to the rotation of a ferromagnetic target wheel in front of the HA-P2, the magnetic field is modulated at the place of the Hall probe. A Hall-effect sensor element with integrated signal conditioning circuit detects this change and generates a digital output signal.

The main feature and benefit of this sensor is the combination of a high quality production part, robust design, very small housing and low weight.


  • Max. frequency: ≤ 10 kHz
  • Air gap: 0.5 to 1.0 mm
  • Bore diameter: 15 mm
  • Max. vibration: 400 m/s² at 10 Hz to 2 kHz
  • Weight w/o wire: 12 g





Max. frequency

≤10 kHz

Target wheel air gap

0.5 to 2.5 mm

Temperature range

-40 to 160°C

Output circuit

Open collector for 1 kOhm

Output type

Active low

External magnetic fields

< 0.1 mT

Max. vibration

400 m/s2 at 10 Hz to 2 kHz

Technical Specifications

Mechanical Data

Weight w/o wire

12 g

Bore diameter

15 mm

Installation depth L2

15 mm


With screw 1 x M6

Tightening torque

8 Nm

Electrical Data

Power supply US

4.75 to 18 V

Current Is

10 mA


Accuracy repeatability of the falling edge of tooth

up to 1.5 mm

up to 2.5 mm

< 4 % (≤ 10 kHz)

< 8 % (≤ 10 kHz)

Signal output

0.4 V to < US

Connectors and Wires


Hirschmann 872-658-501 Cod.A

Mating connector


Pin 1


Pin 2


Pin 3



Target wheel diameter D

162.34 mm

Thickness t

12.5 mm

Width of teeth b1

3.8 mm

Width of gap b2

4.7 mm

Width of sync. gap b3

20.79 mm

Depth of teeth h1

3.4 mm

Number of teeth


Installation Notes

Application Notes

The HA-P2 can be connected directly to most control units and data logging systems.

Please avoid abrupt temperature changes.

For mounting please use only the integrated plug.

If a wheel with different dimensions is used (see Environment), the technical function has to be tested individually.

Please ensure that the environmental conditions do not exceed the sensor specifications.

Please find further application hints in the offer drawing at our homepage.

Safety Note

The sensor is not intended to be used for safety related applications without appropriate measures for signal validation in the application system.

Ordering Information

Speed Sensor Hall-Effect HA-P2

Order number: 0232.103.111