Integrated Radar Water Level Gauge for Hydrology Station
Key Features
FMCW radar measurement technology: Provides reliable non-contact water level measurement for rivers, lakes, reservoirs, canals, and flood-prone areas.
High accuracy and stable performance: Measurement accuracy reaches ±3 mm and ±0.05% FS, with 1 mm resolution for precise hydrological monitoring.
Multiple measuring ranges available: Supports 15 m 40 m 70 m and 110 m measurement ranges to meet different installation and field requirements.
Integrated RTU option for cloud upload: The RD-300-R version can upload data directly to servers or cloud platforms, simplifying system integration.
Supports multiple communication protocols: Compatible with SL651 SZY206 MQTT HJ212 HTTP and customized protocols for water conservancy and IoT platforms.
Bluetooth mobile app configuration: Built-in low-power Bluetooth enables field parameter setting and maintenance through a mobile app without a computer.
Solar power friendly low power design: Low system power consumption makes it suitable for solar-powered outdoor monitoring stations.
IP68 waterproof housing for field use: Fully waterproof design with reverse polarity protection and lightning protection for harsh outdoor environments.
Built-in angle attitude sensor: Helps detect installation tilt and improves on-site installation and debugging efficiency.
Flat antenna design: Reduces risks caused by insect nesting, spider webs, fog, and condensation affecting radar signals.
Multiple wired and wireless options: Supports RS485 RS232 SDI12 Modbus 4 to 20 mA 4G NB-IoT and LoRa depending on model and configuration.
Reliable monitoring during flood season: Designed to monitor water levels even under high-flow flood conditions.
JW-RD-300R(HJ02) Radar Water Level Sensor is an integrated non-contact water level monitoring device designed for rivers, reservoirs, lakes, irrigation canals, urban flood control, and mountain flash flood warning systems. Based on FMCW radar technology, it provides stable and accurate water level measurement without being affected by temperature, air pressure, dust, fog, or water pollutants. With optional built-in RTU, Bluetooth configuration, solar power compatibility, and multiple communication interfaces, it is ideal for remote hydrological and flood monitoring projects.
2. Product Overview
JW-RD-300R(HJ02) integrated radar water level meter is designed for continuous outdoor water level monitoring in hydrology, flood control, urban drainage, irrigation, and reservoir management. It uses frequency-modulated continuous wave radar technology to measure the distance between the sensor and water surface, enabling non-contact level detection without requiring contact with the water body.
Compared with traditional contact-type water level sensors, this radar water level gauge is easier to maintain and more suitable for rivers with sediment, floating debris, pollution, high flow velocity, and harsh weather conditions. The compact and lightweight structure provides strong wind resistance and easy installation on bridges, riverbanks, poles, channels, and monitoring stations.
For projects that require independent remote stations, the integrated RTU version can combine sensing, communication, data upload, and remote maintenance in one device. It can be connected to cloud platforms through 4G, NB-IoT, or LoRa communication, reducing wiring complexity and improving project deployment efficiency.
Item
Specification
Product Type
Radar Water Level Meter Integrated Radar Water Level Meter
SL651 default SZY206 MQTT and customized protocols
RTU Upload Interval
5 minutes to 24 hours configurable for RD-300R
Housing Material
UV-resistant ASA or aluminum alloy housing
3. Communication and Platform Functions
The radar water level sensor supports flexible output and communication options for different monitoring systems. Standard RS485 with Modbus protocol allows easy integration with data loggers, RTUs, PLCs, and IoT gateways. Optional RS232 and SDI-12 interfaces are available for hydrological and environmental monitoring systems. For analog monitoring projects, 4 to 20 mA output can also be selected.
For remote stations, the integrated RTU version supports 4G, NB-IoT, or LoRa wireless data transmission. The device can upload water level data directly to cloud platforms or water conservancy monitoring systems through SL651, SZY206, MQTT, HJ212, HTTP, or customized communication protocols.
4. Application Scenarios
River and Lake Hydrological Monitoring: Used for real-time water level monitoring in rivers, lakes, reservoirs, and natural water bodies. It supports long-term hydrological data collection for water resource management and flood forecasting.
Flood Warning and Disaster Prevention: The non-contact radar gauge can continuously monitor river, reservoir, and channel water levels without direct contact with the water. Combined with rainfall sensors, remote telemetry, and alarm thresholds, it becomes a core sensing device in a river flood early warning system.
Irrigation Canal and Drainage Monitoring: Applicable to irrigation canals, drainage channels, sluices, and water conservancy projects where stable non-contact level measurement is required.
Urban Waterlogging Monitoring: Can be installed in urban flood-prone areas, underpasses, drainage outlets, and low-lying roads to support early warning and emergency response.
FAQ
Q
1. What is this radar water level sensor used for?
A
This radar water level sensor is used for non-contact water level monitoring in rivers, lakes, reservoirs, irrigation canals, urban flood areas, and mountain flash flood warning systems.
Q
2. Does the sensor need to touch the water surface?
A
No. The device uses FMCW radar technology to measure water level without touching the water surface, making it suitable for polluted water, high-flow rivers, and harsh outdoor environments.
Q
3. What communication interfaces does the sensor support?
A
The sensor supports RS485 by default, with optional RS232, SDI-12, Modbus, and 4 to 20 mA output. The integrated RTU version can also support 4G, NB-IoT, or LoRa wireless transmission.
Q
4. Can this sensor be used with a solar power system?
A
Yes. The low-power design allows the radar water level sensor to work with solar-powered monitoring stations, making it suitable for remote outdoor sites.
Q
5. Does JW-IoT provide a radar water level solution for flood warning projects?
A
Yes. JW-IoT can provide a complete radar water level monitoring solution for flood warning, including sensors, RTU data transmission, solar power supply, cloud platform integration, and alarm configuration.
Q
6. What is the measurement accuracy?
A
The sensor provides high-precision measurement with accuracy up to ±3 mm and ±0.05% FS, and a resolution of 1 mm.
Q
7. Can it be installed outdoors for long-term monitoring?
A
Yes. The sensor has an IP68 protection rating, lightning protection, waterproof design, and outdoor-ready housing materials, making it suitable for long-term field deployment.
Q
8. Does JW-IoT support cloud platform integration?
A
Yes. JW-IoT can support cloud platform integration through protocols such as MQTT, HTTP, SL651, SZY206, HJ212, and customized protocols depending on project requirements.
Q
9. Can parameters be configured on-site?
A
Yes. The sensor has built-in low-power Bluetooth, allowing users to configure parameters and perform field maintenance through a mobile app.
Q
10. Is the device suitable for flood season monitoring?
A
Yes. The radar water level meter is designed to monitor under high-flow conditions during flood seasons and can be used in flood warning and disaster prevention projects.
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