WSR201 60G Radar level meter

• Features

60GHz PCR technology for higher resolution, better accuracy, and more stable performance.

Detection up to 15m with a minimum blocking distance of 0.15m.

The narrow beam angle and concentrated energy offer strong anti-interference capability, high measurement accuracy, and excellent reliability.

Effective working in harsh environments; unaffected by light, rain, snow, dust, or water mist.

Multiple output circuit interfaces are available.

Low radar transmission power ensures safety for humans and the environment.

Bluetooth commissioning via phone makes on-site maintenance quick and easy.

• Why Choose WSR201 60GHz Radar Level Meter

Reliable Non-contact Water Level Measurement

The WSR201 60GHz Radar Level Meter is designed for continuous non-contact water level monitoring in natural and artificial water bodies. By using high-frequency PCR radar technology, it accurately measures the distance to the water surface without contacting the medium.

Unlike contact-type level sensors, the radar antenna remains above the water surface, minimizing maintenance requirements and reducing the influence of contamination, corrosion, or sediment buildup.

Stable Performance in Outdoor Environments

Outdoor hydrological monitoring systems often operate under changing weather conditions.

The WSR201 is designed to maintain stable measurement performance in environments affected by:

• Rain
• Snow
• Water mist
• Dust
• Fog
• Strong sunlight

The narrow 6° beam angle helps reduce interference from nearby structures such as bridge beams, channel walls, or vegetation, making it suitable for installation in confined monitoring locations.

Easy Integration with Monitoring Systems

The WSR201 supports multiple industrial communication methods, including:

• 4–20 mA analog output
• RS485 communication
• Modbus RTU protocol
• Bluetooth wireless commissioning

•  Specification

• Typical Applications

River Water Level Monitoring

The WSR201 is suitable for continuous river level monitoring stations. The non-contact measuring principle eliminates sensor immersion, reducing maintenance while providing stable level data for hydrological observation and water resource management.

Reservoir Monitoring

Reservoir operators require accurate water level information for daily management and flood control.

The WSR201 provides real-time level measurement without being affected by changing water density or seasonal temperature variations, supporting long-term monitoring applications.

Irrigation Canal Monitoring

Water level monitoring plays an important role in agricultural irrigation systems.

Installed above irrigation channels, the WSR201 continuously measures water level and transmits measurement data to centralized monitoring systems for irrigation scheduling.

Urban Drainage Monitoring

In municipal drainage systems, radar level measurement can be used to monitor water levels inside open drainage channels and flood control facilities.

Its non-contact operation helps reduce maintenance requirements compared with submerged sensors.

Lake and Wetland Monitoring

Environmental agencies often require continuous water level records for lakes and wetlands.

The WSR201 supports long-term unattended monitoring by providing stable measurement without direct contact with the water surface.

• Working Principle

How Does the WSR201 Radar Level Meter Work?

The WSR201 uses 60GHz Pulsed Coherent Radar (PCR) technology to measure the distance between the radar antenna and the liquid surface.

The sensor emits microwave radar signals toward the water surface. After the signal is reflected, the instrument calculates the distance based on the returned radar signal and converts it into an accurate level measurement.

Since the radar signal propagates through air, the measurement is not directly influenced by changes in water density or dielectric constant within the specified application range, and no on-site calibration is normally required.

• Installation Tips

To achieve optimal measurement performance:

• Install the sensor vertically above the water surface.
• Avoid directing the radar beam toward ladders, railings, or other large reflective objects.
• Ensure the measured liquid surface remains within the specified measuring range.
• Select a mounting position that minimizes unnecessary reflections from surrounding structures.
• Keep the radar antenna clean during routine inspections if heavy dust accumulation is present.

Advantages over Traditional Water Level Measurement

FAQ：

What is the maximum measuring range of WSR201?

The WSR201 is available with measuring ranges of 5 m, 10 m, and 15 m, depending on the selected model.

Can the WSR201 be used outdoors?

Yes. The instrument is designed for outdoor hydrological monitoring applications and is rated IP68 for environmental protection.

Does the WSR201 require contact with the liquid?

No. The WSR201 uses non-contact 60GHz radar technology and measures from above the liquid surface.

What communication interfaces are available?

The WSR201 supports:

• 4–20 mA
• RS485
• Modbus RTU
• Bluetooth configuration

making it suitable for integration with industrial automation systems.

Is on-site calibration required?

According to the product specifications, the WSR201 is designed without the need for routine on-site calibration under normal application conditions.