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The GEL 247 is a 1 or 2 channel application approved speed sensor based on magnetic measurement principle which has maintenance- and wear-free operation due to a contactless measurement of rotation.


The speed sensor has scans measuring scales made of ferromagnetic materials, e.g. toothed wheels and has a side measuring range for safe detection of slow rotation without pulse loss and for high-speed rotation.

It’s two channels shifted by 90° provide the direction of rotation and all contained in robust and compact stainless steel housing suitable for harsh application.

Technical dta

GEL 247

Fields of application

Rail vehicles

Supply voltage

10 to 30 V DC

Measuring range

0 to 25 kHz

Temperature range

-40 °C to +120 °C

Protection class

IP 68

Number of channels

up to 2

Modul of target wheel

1.0 to 3.5

Material of target wheel

ferromagnetic steel

Air gap of target wheel

0.1 mm to 1.3 mm depending on the module