Available from Q2 2026

FX200

High-precision Non-contact Open Channel Flow Meter with LiDAR for channel scanning

Product Description
The Geolux FX200 is an integrated instrument utilizing advanced
FMCW 4D surface velocity radar and FMCW water level radar
meter, and a LiDAR-based river channel scanner. Designed for
non-contact measurement applications, the FX200 enables rapid
deployment above water surfaces while minimizing maintenance
requirements.
The FX200 is based on the advanced 4D radar processing that
delivers superior performance compared to conventional Doppler
based surface velocity radars. While traditional Doppler sensors
are susceptible to measurement degradation from ambient
interference, precipitation, and structural vibration, the FX200’s
signal processing architecture ensures consistent, high-accuracy
velocity measurements under all environmental conditions.
Calculation of the total flow discharge is internally implemented
within the instrument by combining surface velocity measurement,
water level measurement, and a the configured cross-section of
the river or channel. The cross-section of the river or channel can
be automatically determined and updated by an on-board LiDAR
scanner, eliminating the need for manual measurements of the
channel cross-section.

ParameterModel
FX200
Application Hydrology and Flood Monitoring
x
Application Wastewater and Industrial Monitoring
x
Application Irrigation Monitoring
x
Application Snow Monitoring
x
Application Coastal and Ocean Monitoring
x
Application Meteorology
-
Distance Detection
15m/30m/35m
Speed Range
0.02 m/s to 16 m/s
Speed Resolution
0.001 m/s
Speed Accuracy
1% of measured value
(in full measurement range)
Level Resolution
1 mm
Level Accuracy
± 2 mm
Sampling Rate
1 sps
IP Rating
P68
Interfaces
RS-232 / NMEA
RS-485 / Modbus RTU
SDI-12
Connector Type
M12 circular 12-pin
Cable
10 m cable included
Input Voltage
9 to 27 VDC
Power Consumption
1100 mW operational
30 mW standby
Maximal Current
< 750 mA
Operating Temperature Range
-40°C to +85°C
Operating Humidity Range
0 – 100% RH
  • Contactless measurement of surface velocity, water level and river channel profile
  • Integrated discharge (flowrate) calculation
  • 4D radar processing increases sensitivity while eliminating environmental disturbances
  • Robust, compact, IP68 aluminium or stainless steel enclosure