Precise, Robust and Reliable Distance Measurements and Data Transmission

LPR®-1D24: highly-precise 1D distance measurements, reliable data transmission and integrated diversity antenna

LPR®-1D24 is a universal distance measurement sensor that operates under the proven and patented LPR® measurement principle. The 24 GHz wireless technology and diversity antenna integrated in the housing expand the functionality and utility of the LPR®-1D24 even further.

LPR®-1D24 relies on two sensors to carry out the measurements. The data is stored in the two measurement units and is accessible in real-time for further processing via industry-standard interfaces. LPR®-1D24 can be optionally furnished with dry-contact switch relays. In addition to the distance measurements, the relative speed of the LPR® sensors is also transmitted. As an option, other measurement data such as crane lifting height or weight can be transmitted across the LPR® wireless channel. The parallel data transmission capability also means the crane can send all relevant data to a stationary unit at the end of the crane runway without the need for WiFi connectivity.

Because the antenna is integrated in the housing, the devices are very easy to install and commission. An approximate alignment of the two sensor units is all that is required to carry out precise measurements, even over long distances. Via a user-friendly website, the units can be easily configured and put into operation. Separate software is not required.

The Symeo LPR® wireless technology is reliable even in harsh environments. The LPR®-1D24 sensors are maintenance-free. WiFi data networks at 2.4 or 5.7 GHz can be operated in parallel at any time without the risk of interference as the system is working at 24 GHz.


  • Precise distance measurement solution
  • Reliable data transmission
  • Contactless wireless measurements using the 24 GHz ISM band
  • Integrated multichannel diversity antenna
  • Easy commissioning
  • Configurable via website
  • Simple combination of x and y axis measurements
  • Built-in optional switch relays
  • Maintenance-free


  • Measurement technology: LPR® 24 GHz
  • Measurement accuracy: up to +/- 2,5 cm *
  • Range: up to 1,000 m *


  • Distance measurement
  • Position detection
  • Collision avoidance
  • Telemetry

Application fields

  • Crane anti-collision at one level
  • Crane anti-collision at different levels
  • Crane positioning
Designed by Choose Purple
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