HLK-LD7901B 80GHz Water Level Detection Radar Module – Precision Sensor

HLK-LD7901B 80GHz Water Level Detection Radar Module – Precision Sensor

Description:
The HLK-LD7901B is a high-frequency 79–81GHz radar module designed for accurate water level monitoring in industrial, agricultural, and smart water management systems. It provides reliable detection over a range of 0.15m to 15m with narrow horizontal (8°) and vertical (7°) coverage angles, ensuring precise measurements in confined or specific areas.

Featuring a serial port uplink with standard serial protocol, this module integrates seamlessly with IoT, PLCs, and monitoring devices. With 12dBm transmitting power and low-power 3.3V operation, it offers efficient performance and stability in diverse environments. Its slim 31.6×51.6×2.2mm form factor allows flexible mounting in tight spaces.

Key Features:

• Operating Frequency: 79–81GHz

• Function: Water level detection

• Detection Range: 0.15m to 15m

• Detection Angle: Horizontal 8°, Vertical 7°

• Output Interface: Serial port uplink, serial protocol

• Transmitting Power: 12dBm

• Power Supply: 3.3V

• Module Dimensions: 31.6×51.6×2.2mm

• Operating Temperature: -20℃ to +80℃

• Applications: Water tank monitoring, flood detection, smart irrigation, industrial liquid level sensing