Magnetic proximity switch of VS Sensorik

Magnetic proximity switches

Extremely pressure-resistant and temperature-stable

Magnetic proximity switches detect selective switching marks of ferromagnetic steel. Non-magnetic materials have no influence on the function of the proximity switches.


The encoders are characterised by robustness, high switching frequencies and high temperature stability. The use of closed metal housings permits nearly arbitrary pressure resistance to be obtained.


Distance sensors with a resolution in the micrometre range are available upon request. These are a combination of the magnetic principle of the proximity switch with low-noise, analogue signal electronics.


  • Selective detection of ferromagnetic switching marks
  • Compression strength up to 1,000 bar, also dynamic
  • Switching distance up to 8 mm – even greater upon request
  • Flush or non-flush mounting possible
  • Power supply voltage optionally up to 60 VDC
  • Current capacity optionally up to 300 mA
  • Working temperature  -60 … 125 °C –  even greater upon request
  • High temperature fluctuation resistance
  • Comparably extremely short trigger time (switching frequency up to 15 kHz)
  • Closed, pressure-resistant metal housings
  • Resistant to oils, salts, alkalis, acids
  • Suitable for industrial cleaning with water or steam blasting
  • High vibration and shock resistance


  • Piston detection in hydraulic cylinders
  • Drive units of vehicles and ships
  • Detection of ferromagnetic parts through walls of e.g. aluminium, magnesium, stainless steel  
  • Aviation
  • Highly dynamic distance measurement with a resolution in the micrometre range