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KaiNaFu Releases KNF-1311 80GHz FMCW Radar Water Level Gauge for Hydrological Monitoring

Shenzhen, China — KaiNaFu, a professional radar water level gauge manufacturer, has released the KNF-1311 series 80GHz FMCW radar water level gauge, a non-contact level transmitter purpose-built for hydrological detection. The new model combines millimeter-wave radar technology with a compact, fully sealed housing, giving water authorities, environmental monitoring contractors and smart-city integrators a reliable way to measure rivers, lakes, reservoirs and sewage pipelines without touching the water surface.

Why 80GHz FMCW Radar Changes the Rules

Traditional pulse radar and ultrasonic sensors struggle with narrow shafts, turbulent surfaces, foam and floating debris. The KNF-1311 operates in FMCW (Frequency Modulated Continuous Wave) mode with a 4GHz sweep across the 77GHz to 81GHz band, which produces a far narrower 6° to 10° beam. A tighter beam means fewer false echoes from tank walls, pipes and vegetation, and stable readings even in installations with limited space.

• Non-contact installation — no contact with the medium, so no corrosion, no contamination and no maintenance downtime
• High precision — ±5mm measurement accuracy with 1mm resolution across a 0.1m to 40m range
• Low power consumption — 20mA typical working current at 9V to 24V DC, ideal for solar and battery-backed field stations
• Anti-adhesion PTFE lens — the polytetrafluoroethylene antenna resists material buildup and keeps the signal path clean
• IP68 waterproof housing — rated for permanent outdoor exposure, flooding, rain and high humidity
• Fast response — 100ms startup and a configurable 0.1 to 25 Fps refresh rate

Technical Specifications

Engineered for Harsh Hydrological Environments

The KNF-1311 is designed around a simple, rugged structure: a Φ66mm cylindrical body, an L-shaped mounting plate and a universal joint duckbill bracket that allow quick alignment on bridges, channel walls, manholes and monitoring poles. Because the sensor never contacts the water, silt, algae and chemical discharge have no effect on the measuring element, and the PTFE lens actively repels sticky media so that rafts of foam or debris slide away instead of distorting the echo.

Typical Applications

• River and lake level monitoring networks
• Flash flood warning and urban drainage supervision
• Reservoir and dam water level control
• Sewage pipeline and pump station level measurement
• Irrigation channels and hydropower station forebays
• Smart water conservancy and IoT telemetry projects

Supply, Packaging and Delivery

As a direct radar water level gauge manufacturer, KaiNaFu supports sample orders from one piece and volume production of up to 300 pieces per month, with delivery scheduled in 10 to 20 working days. Every unit is packed in an environmentally friendly cardboard box, and 8 meters of communication cable is supplied with the radar body as standard. Payment terms are T/T, and OEM branding, custom cable lengths and project-specific configurations can be discussed with the sales team.

About KaiNaFu

KaiNaFu is a Shenzhen-based sensor manufacturer specializing in radar level transmitters, water level gauges and hydrological monitoring instruments. The company supplies OEM and ODM partners across Asia, Europe, the Middle East and South America, and provides technical support for sensor selection, installation planning and data integration into SCADA and IoT platforms.