Product Introduction (pdf)

Product Introduction

The KH.LDX Non-Contact Radar Current Meter is a high-precision hydrological flow velocity sensor designed for real-time measurement of river surface velocity in rivers, streams, canals, and open channels.

Using advanced microwave Doppler radar technology, the device measures surface flow velocity without physical contact, ensuring stable and reliable performance in complex environments such as flood events, turbulent flow, sediment-heavy rivers, vegetation interference, and floating debris conditions.

It is widely used in hydrological monitoring stations, flood early warning systems, irrigation networks, and smart water management platforms, providing critical velocity data for flow estimation, flood forecasting, and water resource management.

How It Works

The radar emits microwave signals toward the water surface and analyzes the Doppler frequency shift of the reflected signal to calculate surface flow velocity.

This non-contact measurement method ensures:

• No mechanical wear or moving parts
• No blockage from debris, vegetation, or sediment
• Stable performance even during flood conditions

Key Features

Non-Contact Radar Velocity Measurement

Measures river surface velocity without physical contact, eliminating interference from sediment, aquatic plants, turbulence, and debris.

High-Precision Flow Velocity Detection

Provides accuracy up to ±0.01 m/s with 0.01 m/s resolution, suitable for professional hydrological and research-grade applications.

Reliable Operation in Flood Conditions

Stable performance under extreme environments such as:

• Heavy rainfall events
• Flash flood surges
• High turbulence flow
• Muddy or debris-filled water

Industrial-Grade Outdoor Design

IP-rated waterproof housing with anti-condensation structure and lightning protection ensures long-term outdoor reliability.

Low Power Consumption for Remote Deployment

Optimized for solar-powered hydrological stations and unattended monitoring systems with intelligent energy-saving mode.

Compact & Flexible Installation

Can be installed on bridges, riverbanks, poles, or telemetry stations, requiring minimal infrastructure modification.

IoT & Telemetry Integration Ready

Supports RS485 Modbus communication, enabling seamless integration with:

• SCADA systems
• Hydrological data platforms
• IoT-based flood monitoring networks

Application Scenarios

River Flow Velocity Monitoring

Real-time surface velocity measurement for hydrological analysis and river dynamics research.

Flood Early Warning Systems

Provides key velocity data for flood prediction, risk assessment, and emergency response systems.

Hydrological Monitoring Networks

Used in national and regional river monitoring stations and environmental observation systems.

Urban Flood Control Systems

Supports smart city drainage systems, stormwater monitoring, and sponge city infrastructure.

Irrigation & Water Resource Management

Monitors canal and reservoir flow conditions for agricultural water distribution optimization.

Technical Specifications