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The NJR4234BW is a sensor module that can measure the distance to a moving object and/or
stationary object more than 20 m ahead and incorporates a 24 GHz band microwave circuit, antenna,
and signal processing circuit in a low profile package of 38 x 38 x 4.2 mm.
As a sensor capable of distance measurement using microwave, it is possible to detect moving objects
by innovative proprietary signal processing, even to detect stationary objects, and also has the function
to calculate and output the distance to the objects in indoor and outdoor environments. In addition, it
has the unique algorithm to prevent radio interference, possible to use multiple sensors under the same
It can be used as a sensor front end with built-in primary signal processing for distance measurement.
In addition, since it can be easily connected to other equipment via the UART interface, it can be used
in a wide range of applications.

Technical Data

  • Distance measurement sensor using the
    24GHz microwave
  • Measurement distance of 20 m for a pedestrian.
  • Antenna, Microwave RF circuit, Base-band IF
    circuit, MCU and also signal processing are
    integrated in a low-profile package
  • Low-power-consumption
    37 mA @ 3.3 V power supply
  • Unique Signal Processing / Algorithm Installation
  • High sensitivity mobile object detection
    (Patented Technology)
  • Distance measurement signal processing
  • Automatic calibration and gain control
  • Radio interference prevention
  • Adopted UART and digital CMOS output for
  • Possible to be installed in indoor and outdoor


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Your Contact Person

Christian Moser

Application Engineer

+49(0)5424 2340-29

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