LSR-803L LoRa Capable Radar Level Sensor

LoRa Ready Radar Level Measurement.

Monitor for liquid level up to 591 inches (49.2ft / 15m) with this simple to operate Radar Level Sensor.

 CE Mark




The LSR-803 Series sensors are W-band FMCW continuous frequency modulation radar level transmitters. They provide continuous level measurement up to 591 inches (49.2 ft. or 15m) with 4-20 mA output as well as RS485, BlueTooth 5.0®. The LSR-803L is also equipped withLoRa (Long Range Radio) digital output for long-distance wireless level sensor data access.

The LSR-803 Series has a 1.3”OLED display and 4 buttons for quick configuration. Moreover, it can be wirelessly configured via the uPyxis® app. Furthermore, these make for rapid integration and deployment in the field. So, the sensors are powered by a24 VDC /2.0W external power supply or 4-AA alkaline batteries and are ideal for use with commonly used OEM controllers, PLC or DCS systems. In addition this non-contact liquid level sensor platform is well suited for corrosive liquids and can be used for industrial, municipal and process liquid storage as well as chemical feed applications.


  • Radar Liquid Level Measurement up to 15 Meters (+2mm)
  • Embedded Transmitters 4-20mA and RS-485 Outputs
  • Bluetooth® Version 5.0 for Rapid-Wireless uPyxis Configuration
  • LoRa (Long Range Radio) Implemented LSR-801L
  • 24VDC Powered with Smart Switch Capability
  • PVDF Transducer / 6P Polycarbonate Enclosure
  • 10-ft Waterproof 7-Pin Quick Adapter/Flying Lead Cable
  • Extension Cables Available
  • Automatic Temperature / Electromagnetic Noise Compensation



Item LS-803L
Part Number 54495
Range 2–590in (0.05–15m)
Accuracy ±2mm
Resolution 0.02in (0.5mm)
Dead Zone 4in (10cm)
Configuration uPyxis® App
Power Supply (4) AA Batteries / 24VDC. 2.0W Max
Signal Output Bluetooth® 5.0 / 4-20mA & RS-485 Modbus / LoRa Long Range Radio
Measurement Interval Programmable via uPyxis
Enclosure Rating IP66
Installation 2in MNPT
Storage Temperature -4-140 °F (-20-60 °C)
Operational Temperature 5-122 °F (-15-50 °C)
Pressure -29–58psi (-0.2–0.4MPa)
Enclosure Material Polycarbonate, Polybutylene Terephthalate
Transmittance FCC ID 2BAJ2-LSR
Dimension 4.13in (105mm) H, 3.31in (84mm) D
Weight 370g (0.82lbs)

Support Documents

LSR-803 Series Data Sheet

LSR-803 Series Radar Operation Manual Ver 1.0


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