Speed Sensor Inductive IS

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

The inductive sensor consists of a bar magnet with a soft magnetic pole pin supporting an induction coil with two connections. Every time a ferromagnetic ring gear turns past this sensor, it generates a voltage in the coil which is directly proportional to the periodic variation in the magnetic flux. The rotational speed is reflected on a periodic interval between the voltage’s zero transition points.

The main benefit of this sensor is the combination of a high quality production part and robust, high temperature resistance. Additionally the installation depth can be changed according to the customer request.


  • Temp. range: -40 to 230°C
  • Air gap: 0.8±0.3 mm
  • Bore diameter: 12.5 mm
  • Weight w/o wire: 30 g




Max. frequency

≤15 kHz

Target wheel air gap AG

0.8 ± 0.3 mm

Operating temp. range (sensing head)

-40 to 230°C

Storage temperature range

0 to 100°C

Max. vibration

800 m/s2 max. 80 h

Technical Specifications

Mechanical Data

Magnetic pole


Bore diameter

12.5 mm

Tightening torque

8 Nm

Weight w/o wire

30 g

Installation depth L2

32.2 mm

Electrical Data

Coil resistance

1,200 Ohm

Inductance max.

400 mH

Output voltage max.

190 V P-P


Target wheel diameter D

160.43 mm

Thickness t

> 5 mm

Width of teeth b1

4.1 mm

Width of gap b2

4.3 mm

Depth of teeth h1

3.5 mm

Depth of teeth h2

1.75 mm

Number of teeth


Connectors and Wires



Mating connector


F 02U 000 237-01

Pin 1


Pin 2


Pin 3


Pin 4


Pin 5


Various motorsport and automotive connectors available on request.



Wire size

AWG 24

Wire length L

10 to 100 cm

Please specify the required wire length with your order.

Installation Notes

The inductive speed sensor IS is developed for wheels made of ferromagnetic material.

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

The installation depth L2 can be changed individually according to customer request.

Please contact our technical consultancy for more information.

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

Inductive Speed Sensor IS


Order number: F 02U V02 161-01