FourFaith IoT
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Non-contact distance and water level measurement; real-time output of filtered water level, free height and signal strength; supports seamless switching between Modbus-RTU and proprietary protocols; configurable device address, baud rate, range, sensitivity and filtering parameters; built-in signal filtering, background modelling and anti-jitter algorithms; device soft reset; 100 ms rapid start-up.
No additional optional modules; used solely in conjunction with supporting peripherals such as telemetry terminals and mounting brackets.
The F-LD100-80G is a water level sensor developed in-house by Sifeng IoT, utilising FMCW (Frequency-Modulated Continuous Wave) radar technology. Featuring a non-contact measurement design and a compact, space-saving form factor, it offers high precision, low power consumption and strong anti-interference capabilities. It is suitable for long-term online monitoring of water levels in various bodies of water and can be paired with a universal telemetry terminal to interface with remote monitoring platforms.
80 GHz high-frequency radar with a narrow beam angle, making it resistant to interference from shoreline debris and water vortices;Non-contact measurement eliminates issues with water immersion, silting and corrosion, resulting in low maintenance requirements;High-precision ranging with millimetre-level resolution ensures stable and reliable measurement data;Wide operating voltage and temperature ranges ensure stable operation in extreme outdoor environments;IP67 waterproof aviation connectors with sealed protection, suitable for damp and open-air installations;Supports customisation of multiple parameters to adapt to different water surface flow conditions;RS485 standard industrial bus, compatible with the vast majority of data acquisition terminals on the market;Low operating power consumption, suitable for solar-powered field monitoring stations without mains supply.
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| Measurement parameters | Water level, height above water | Measurement range | 0.1 ~ 40 m |
|---|---|---|---|
| Measurement | ±2 mm | Resolution | 1 mm |
| Interface type | 4-pin waterproof RS485 aviation connector | Communication methods | Switchable between Modbus-RTU and proprietary protocol; default baud rate 115200 |
| Power supply and power consumption | DC 9–24 V | Typical Operating Current | 20 mA |
| Protection Rating | IP67 | Operating Temperature | -45℃ ~ +85℃ |
Online liquid level monitoring for lakes, rivers, flash flood warning points, reservoirs and sewage networks.
A:A water surface with fish-scale ripples provides the best signal reflection; installation should avoid areas with eddies, complex flow channels, pipe outlets, rapid currents and sloping weirs.
A:Water level = Preset installation height – Actual free height; the device must have the installation height from the probe to the water bottom pre-programmed in order to output accurate water level readings.
A:Supports Modbus-RTU and a proprietary protocol; all measurement parameters—including address, baud rate, range, filtering, sensitivity and transmission power—can be modified.
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