Many of the issues traditionally associated with water level measurement have been solved in the VRS-20 pulsed K-band radar level sensor.
Versatile and simple to install, the VRS-20 has been developed by Valeport to work seamlessly with the TideMaster Tide Display/Logger and other third party data loggers using RS232, RS485 and SDI-12 communication. Non-contact technology removes the installation, corrosion & fouling issues of submerged sensors, while simplifying datum control. Accuracy and performance are unaffected by changes in water density and atmospheric conditions.
Non-contact technology removes the installation, corrosion & fouling issues of submerged sensors, while simplifying datum control. Accuracy and performance are unaffected by changes in water density and atmospheric conditions.
Radius at different ranges:
2 5 10 20
0.21 0.53 1.05 2.10
The VRS-20 offers averaged data output options for water level / tide measurements only. Wave measurement sampling is not available.
Raw Sampling Rate
Selectable (10 to 360 seconds)
Mean Range Mean Height Std. Deviation
9-28 V DC
35mA @ 12V DC
RS232/485 and SDI12 fitted as standard with communications method defined by pin selection
Up to 200m cable, direct to serial port
Up to 1000m cable, addressable half duplex
Up to 100m cable
Housing & Mounting
• Fully sealed, injection moulded housing rated to IP67 (NEMA 6) with PTFE window • Integral stainless steel mounting bracket with tool free, 2 axis adjustment • Integrated spirit bubbles for easy levelling
The VRS20 radar sensor is fully compliant with: • ETSI EN 302 729-2 V1.1.2(2011-05) Electromagnetic compatibility and Radio spectrum Matters (ERM) Short Range Devices (SRD); Level Probing Radar (LPR) equipment operating in the frequency ranges: 6 GHz to 8,5 GHz, 24,05 GHz to 26,5 GHz, 57 GHz to 64 GHz and 75 GHz to 85 GHz. Please contact Valeport to discuss your requirements in more detail
Valeport’s industry-leading TideMaster Tide Gauge is as the core of Tidestation, bringing Pressure, Radar and hybrid tidal observation techniques coupled with interfaces to other meteorological and 3rd party systems.