Over moulded speed sensor
Temperature sensors for exact and fast measurements
MCU for in-wheel-drive
High temperature detectors with integrated thermal element
Refractometer with integrated thermal element
LED modules for automotive headlights applications
Active accelerator pedal for haptic communication
Direction- and position detection on 3D contours
Inductive height level sensor (IHLS)
Power module for electronically driven water pump
Differential pressure sensor
Electronic Control Unit / E-Mobility

Core competence: Fluid properties sensor

Fluid properties sensors help to measure the concentration and ratios in different liquids (AdBlue®, DEF, Urea) using an optical measuring principle. This highly robust sensor can be used in multiple applications. It offers a high degree of accuracy and temperature resistance.


Using special optical techniques, AB Elektronik’s sensor is capable of detecting variances in urea concentration as small as +/- 2 %, and can operate at temperatures from -10 degC to +85 degC. The optical measurement principle is robust against dirt and moving fluids including gasoline, diesel or coolant.

Typical features and benefits

  • Measuring liquid concentration
  • Concentration ratio of different liquids
  • Wear-free
  • Accuracy: ± 2 % (concentration of urea in water)
  • Measurement range: 0 % - 50 % (urea in water)
  • Function: -40 °C to + 60 °C (85 °C)
  • Signal output: SENT interface
  • Optical measuring principle
  • Frost-resistant
  • Temperature signal
  • Connector type optional
  • Tank or In-Line assembly
  • Quality and Level combined solution
  • Robust modular design


» More information about our standard concept for urea sensor
» Contact our product expert

» Download datasheet AdBlue Sensor (CAN signal)
» Download datasheet AdBlue Sensor (SENT signal)

» Learn more about our exhaust gas technologies
» Get more information from an interview with our product expert

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High temperature detectors with integrated thermal element
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