Speed Sensor Hall-Effect HA-M

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

Due to the rotation of a ferromagnetic target wheel in front of the HA-M, 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. We offer this sensor with two different types of output: Active high and Active low.

The main feature and benefit of this sensor is the combination of a high quality production part and robust design with metal housing and motorsport connectors.



  • Max. frequency: ≤ 4.2 kHz
  • Air gap: 0.5 to 1.0 mm
  • Bore diameter: 11.8 mm
  • Max. vibration: 1,200 m/s² at 10 Hz to 2 kHz
  • Weight w/o wire: 12 g




Max. frequency

≤ 4.2 kHz

Target wheel air gap

0.5 to 1.5 mm

Temperature range

- 40 to 160°C

Output circuit

Open collector for 1 kOhm

Output type

Please see Ordering Information

External magnetic fields

< 1 mT

Max. vibration

1,200 m/s2 at 10 Hz to 2 kHz

Technical Specifications


Active low with connector / active high with connector



Mating connector


Pin 1


Pin 2


Pin 3


Active high, without connector







Mechanical Data

Weight w/o wire

12 g


1 x M6

Bore diameter

11.8 mm

Installation depth L2

30 mm

Tightening torque

6 Nm

Electrical Data

Power supply

5 to 18 V

Current IS

5.6 to 18 mA


Accuracy repeatability of the falling edge of tooth

< 4 % (≤ 4.2 kHz)

Signal output

0.52 V to < Us

Connectors and Wires

Various motorsport and automotive connectors available on request.

Pin layout

Please see Variations



Wire size

AWG 24

Wire length L

10 to 100 cm

Please specify the required wire length with your order.

Installation Notes

The HA-M 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-M

Active low

Order number: B261.209.283-01

Speed Sensor Hall Effect HA-M

Active high

Order number: B261.209.295-01

Speed Sensor Hall Effect HA-M

Active high, without connector

Order number: F02U.V00.627-01

Legal Restrictions

Due to embargo restrictions, sale of this product in Russia, Belarus, Iran, Syria, and North Korea is prohibited.