The radar level sensor provides accurate non-contact level measurement with 2-wire 4–20 mA output, HART, Bluetooth, and RS-485 MODBUS communication. Powered by 24VDC and protected with an IP67-rated enclosure, it supports thread or DN50 flange installation and is ideal for industrial tanks, silos, and process vessels handling solids and liquids.
Reliable Protection & Strong Environmental Adaptability
- Superior IP67 Sealed Protection: The radar level transmitter achieves IP67 high protection grade. Its well-sealed wiring structure provides outstanding water and dust resistance, allowing durable and steady operation in humid industrial production environments for long-term service.
- Wide Applicable Working Conditions: Supported by a standard 24VDC power supply and a maximum process temperature tolerance of 80°C, this radar level sensor fits most conventional industrial measuring environments. It offers two flexible installation options, including thread connection and DN50 flange connection, which can match various storage tanks and meet diverse on-site installation demands.
High-precision Anti-interference Measurement Capacity
- Multi-angle Focused Radar Signal: The radar level transmitter adopts 76GHz~81GHz high-frequency radar transmission, with optional 3°, 8°, and 20° beam angles. The ultra-narrow 3° beam concentrates signal energy and has strong penetration, which can bypass internal obstacles inside tanks and greatly reduce measurement interference.
- Full-range Precise Detection with Rich Communication
Built on high-frequency radar pulse technology, the radar level meter features a tiny blind zone and outstanding measuring precision for both liquid and solid media, delivering stable, accurate readings at all material height levels. Besides, it integrates multiple output and communication modes such as 2-wire 4-20mA, HART, Bluetooth, and RS-485 MODBUS, facilitating on-site debugging and seamless connection with industrial control systems.
Applications
This radar level transmitter monitors liquids and solids. It fits chemical, food, pharmaceutical, and power industry tanks, as well as grain and particle silos. Its waterproof and dustproof design works well in humid workshops, with flexible installation and multiple communication options for industrial-level detection.
Vertical Storage Tank
Agitation Tank
Powder Level
Silo Level Measurement
| Model | SISCO-RLT-FK-WSR550 |
| Measuring Range | 0-10 m |
| Measured Variable | Solid / Liquid |
| Transmission Frequency | 76GHz~81GHz |
| Beam Angle | 3°/8°/20° |
| Accuracy | ±2mm (for liquid measurement); ±5mm (for solid measurement) |
| Blind Zone | ≤0.15m |
| Output Signal | 2-wire 4-20mA + HART + Bluetooth |
| Communication Function | RS-485, MODBUS Bus; HART; Bluetooth |
| Power Supply | 24VDC |
| Process Temperature | 80°C |
| Protection Rating | IP67 |
| Installation Method | Thread /DN50 Flange |
Dimension (unit: mm)
Wiring Diagram
Q1: Does the radar level transmitter support digital communication?
A1: Yes. The radar level sensor supports multiple digital communication protocols, including RS-485, MODBUS, HART, and Bluetooth, allowing seamless integration with PLC, DCS, and SCADA systems. These communication options enable remote configuration, real-time monitoring, diagnostics, and efficient data transmission, making the transmitter an ideal solution for modern industrial automation and process control applications.
Q2: Is the radar level transmitter suitable for narrow tanks?
A2: Yes. The radar level meter is well suited for narrow tanks, especially when configured with the 3° beam angle. The narrow, highly focused radar beam minimizes interference from tank walls, internal structures, and nozzles, ensuring accurate and stable level measurement even in confined spaces. This makes it an excellent choice for small storage tanks, vertical vessels, and other installations where measurement precision is critical.
Q3: Can the radar level transmitter operate outdoors?
A3: Yes. The radar level transmitter is suitable for outdoor installation thanks to its IP67-rated enclosure, which provides excellent protection against dust, rain, and water ingress. Designed for reliable performance in harsh industrial environments, it can operate continuously in outdoor storage tanks, silos, and process vessels. For the best long-term performance, it is recommended to install the transmitter according to the manufacturer's guidelines and use appropriate weather protection in areas exposed to extreme environmental conditions.
Tips: What is the difference between radar level transmitters and ultrasonic level transmitters?
Radar level transmitters and ultrasonic level transmitters both measure level without contacting the material, but they use different technologies.
Radar level transmitters use high-frequency microwave signals, making them highly resistant to dust, steam, foam, condensation, and temperature or pressure changes. They provide greater accuracy and more reliable performance in demanding industrial environments.
Ultrasonic level transmitters use sound waves, which can be affected by environmental conditions such as vapor, dust, turbulence, and temperature variations.
As a result, radar level transmitters are generally the preferred choice for applications requiring high precision, stable performance, and reliable measurement of both liquids and bulk solids.
Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.
What is covered?
SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.
What is not covered?
- Product purchased from anyone other than a SISCO store or a SISCO authorized reseller.
- Expendable parts.
- Routine cleaning or normal cosmetic and mechanical wear.
- Damage from misuse, abuse or neglect.
- Damage from use of parts other than SISCO approved.
- Damage from use outside the product’s usage or storage parameters.
- Damage from use of parts not sold by SISCO.
- Damage from modification or incorporation into other products.
- Damage from repair or replacement of warranted parts by a service provider other than a SISCO authorized service provider.
- Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
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