KH.LDX Non-Contact Radar Current Meter
High-Precision Flow Velocity Sensor for River Monitoring & Flood Management
Product Introduction (pdf)
Product Introduction
The KH.LDX Non-Contact Radar Current Meter is a high-precision flow velocity monitoring instrument designed for hydrological observation, flood forecasting, and smart water management applications. Utilizing advanced microwave radar technology, it provides accurate, reliable, and real-time flow velocity data for rivers, open channels, culverts, and urban stormwater drainage systems.
The sensor integrates a microstrip antenna, RF circuit, and a high-performance signal processing unit, ensuring fast response, excellent stability, and consistent measurement accuracy. Featuring compact structure, low power consumption, and simple installation, the KH.LDX is ideal for long-term, unattended deployment in harsh outdoor environments.
Key Features
- Industrial-Grade Durability
Waterproof and anti-condensation structural design with enhanced lightning protection and a wide operating temperature range ensures reliable performance in severe weather and challenging field environments. - Non-Contact Radar Measurement
Performs flow velocity measurement without contact with water, remaining unaffected by sediment, floating debris, vegetation, waves, turbidity, or changing weather conditions. - High Measurement Accuracy
Provides flow velocity accuracy up to ±0.01 m/s with a resolution of 0.01 m/s, ensuring precise and dependable hydrological data collection. - Energy-Efficient Operation
Supports intelligent switching between measurement and sleep modes, significantly reducing power consumption and making it suitable for remote, solar-powered, or IoT monitoring stations. - Compact and Easy Installation
Lightweight construction allows rapid on-site installation and deployment. Designed for maintenance-free operation and seamless integration with IoT, telemetry, and hydrological monitoring platforms.
Application Scenarios
Rivers and open channels — continuous flow velocity monitoring, flood warning, and water resource management
Urban flood monitoring — stormwater outlets, low-lying urban areas, drainage and stormwater management systems
Culverts and pipelines — non-contact monitoring for underground pipe networks, irrigation channels, and drainage tunnels
Hydrological monitoring networks — combined with water level sensors to support complete discharge calculation and flow analysis
Technical Specifications
| Parameter | Specification |
|---|---|
| Measuring Range | 0.1–20 m/s |
| Measurement Accuracy | ±0.01 m/s |
| Resolution | 0.01 m/s |
| Flow Direction | Automatic bidirectional detection with configurable filtering |
| Measurement Frequency | 1 measurement per second |
| Digital Interface | RS485, default 9600 bps |
| Supply Voltage | 9–24 VDC (typical 12 V) |
| Supply Current | 100 mA (standard version), 29 mA (low-power version) |
| Transmitting Frequency | 24 GHz |
| Radiated Power (EIRP) | 20 dBm |
| Antenna Gain | 18.5 dB |
| Antenna Angle | ±12° |
| Operating Temperature | -45 ℃ to +85 ℃ |
| Protection Level | IP68 waterproof and dustproof |
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