Hi-Link HLK-LD8001B Liquid Level Detection Radar Sensor (79-81GHz) - SPI/UART/I2C Interface
Hi-Link HLK-LD8001B Liquid Level Detection Radar Sensor (79-81GHz) - SPI/UART/I2C Interface - Image 2
SKU: SENS-2455
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Hi-Link HLK-LD8001B Liquid Level Detection Radar Sensor (79-81GHz) - SPI/UART/I2C Interface

₹5,829.00 (Inclusive of all taxes)
Out of Stock

The Hi-Link HLK-LD8001B is a high-precision 79-81GHz FMCW radar sensor module designed for continuous, non-contact liquid level measurement up to 15 meters. It integrates an ARM Cortex-M3 core and supports SPI, UART, and I2C interfaces for seamless integration with industrial PLCs, data loggers, and embedded systems like Raspberry Pi or ESP32.

Features

  • High-precision FMCW radar with ±5mm accuracy over a 15m range.
  • Multi-interface support includes SPI, UART, and I2C for flexible system integration.
  • Features a 100° horizontal x 80° pitch PCB antenna beam for broad coverage.
  • Robust performance unaffected by ambient temperature, humidity, dust, or light variations.
  • Low operating voltage range (3.1V to 3.5V) with a fast 200ms response time.

Out of stock

Description

The HLK-LD8001B module is engineered around the ADT3102 chipset, incorporating a complete 76-81GHz RF transceiver system, a high-gain PCB antenna, 1MB of flash memory, and a dedicated radar signal processing unit powered by an ARM Cortex-M3 core. It utilizes Frequency Modulated Continuous Wave (FMCW) signal processing combined with advanced algorithms to deliver stable and precise distance measurements.

This sensor is specifically designed for challenging industrial environments where traditional methods may fail. Its radar-based sensing principle ensures reliable operation regardless of changes in temperature, humidity, or the presence of dust and vapor, making it ideal for monitoring tanks, silos, and sumps.

Key Features

  • 79-81GHz FMCW Radar Technology for high-accuracy, continuous level measurement.
  • Integrated ARM Cortex-M3 processor handles onboard signal processing and algorithm execution.
  • Wide-beam PCB antenna (100°H x 80°V) simplifies installation and alignment.
  • Robust environmental immunity ensures stable readings in dusty, humid, or variable temperature conditions.
  • Multiple standard digital interfaces (SPI, UART, I2C) provide flexible connectivity options.
  • Compact and optimized design for easy integration into existing monitoring and control systems.

Applications

  • Continuous non-contact liquid level measurement in chemical storage tanks and process vessels.
  • Bulk solid level monitoring in silos, hoppers, and powder storage containers.
  • Wastewater level sensing in sumps, lift stations, and treatment plant basins.
  • Integration into industrial IoT systems for remote tank farm inventory management.
  • Process control and overfill prevention in food & beverage or pharmaceutical manufacturing.

Technical Specifications

ManufacturerHi-Link
Model NumberHLK-LD8001B
Sensor TypeFMCW Radar
Frequency Range79GHz ~ 81GHz
Measurement RangeUp to 15 meters
Accuracy±5mm
Antenna Beam Angle100° Horizontal, 80° Pitch
Communication InterfacesSPI, UART, I2C
Operating Voltage3.1V to 3.5V DC
Response Time200ms
Core ProcessorARM Cortex-M3
Onboard Memory1MB Flash
Item TypeRadar Sensor Module

Frequently Asked Questions

What is the operating voltage range for the HLK-LD8001B sensor?

The HLK-LD8001B requires a tightly regulated 3.1V to 3.5V DC power supply. Exceeding this range may damage the sensitive RF components. It is recommended to use a precision low-noise voltage regulator for optimal performance and measurement stability.

Which communication interfaces are supported and how do I select one?

The module supports SPI, UART (serial), and I2C interfaces concurrently. The active interface is typically selected via configuration commands sent over the UART during initialization or by setting specific hardware pins on the module's connector. Consult the official datasheet for the precise pinout and configuration protocol.

Is this sensor suitable for measuring solid materials or just liquids?

Yes, this FMCW radar sensor is effective for both liquid and solid bulk material level measurement. Its high-frequency signal penetrates dust and is largely unaffected by material color or dielectric constant variations, making it suitable for granules, powders, and aggregates in silos, as well as liquids in tanks.

How is the antenna beam angle used during installation?

The wide 100° horizontal by 80° vertical beam angle simplifies installation by reducing alignment precision required. However, for optimal performance in vessels with internal obstructions like ladders or agitators, it is best to mount the sensor directly above the material surface, ensuring a clear "view" within this cone to avoid false echoes.

Package Includes

  • 1 x Hi-Link HLK-LD8001B Liquid Level Detection Radar Sensor Module

Additional Information

Weight 0.01 kg
Dimensions 10 × 7 × 2 cm

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