






80GHz Radar Water Level Sensor Liquid Level Radar Sensor
LDRR10 series radar sensor is a radar module specifically designed for hydrological detection. This module adopts the FMCW mode, featuring a non-contact installation design.
It is compact in size and has a tight structure. It features high precision, low power consumption and strong anti-interference ability, and is suitable for water level monitoring in lakes, rivers, mountain floods, reservoirs, sewage networks, etc.
1. Millimeter-Level Precision
±3 mm accuracy with 1 mm resolution over a 20-meter range.
2. Ultra-Low Power
Consumes only 18mA at 12V – ideal for battery or solar-powered systems.
3. Adaptable Beam Profile
±25° wide beam standard, or narrow to ±3° with external lens for focused applications.
4. Extreme Environmental Tolerance
Operates from -45°C to +85°C with IP67/IP68 protection.
5. Industry-Standard Connectivity
RS485 interface with switchable ASCII/MODBUS protocols for easy integration.
Main parameters
| Part number | LDRR10 |
| Transmission frequency | 77-81GHz |
| Output power | 13-20dBm |
| Radiation Angle | Horizontal ±25deg, Vertical ±25deg. |
| External lens antenna with beam width (-3dB) | Horizontal ±3deg, Vertical ±3deg. |
| Working voltage | 9-24V, typical 12V |
| Working current | 18mA |
| Output | RS485/UART |
| Baud rate | 115200 |
| Protocol | ASCII/Modbus |
| Working temperature | -45℃~+85℃ |
| Overall dimensions | 67 x 91.6 mm |
| Weight | 180g |
| Start-up time | 100ms |
| Resolution | 1mm |
| Measurement accuracy | ±3mm |
| Ranging range | 0.1-20m |
Request Free Quote for Water Level Sensor 20m Liquid Level Sensor Tank Level Sensor
Request Free Quote for Water Level Sensor 20m Liquid Level Sensor Tank Level Sensor
Application
This module adopts the FMCW mode, featuring a non-contact installation design.
It is compact in size and has a tight structure. It is suitable for water level monitoring in lakes, rivers, mountain floods, reservoirs, sewage networks, etc.
Technical Support & Custom Solution
We provide datasheet, dimension drawing, interface protocol, demo code and technical support.
Support sample test, ODM/OEM customized service, welcome global customers to inquire and cooperate.
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