80GHz Radar Distance Sensor 0.1-40m Tank Level Sensor
LDRR05B is a ranging radar module that can adapt to various working conditions such as solid and liquid. This module adopts an 80G high-frequency chip and frequency-modulated continuous wave mode, which can penetrate obstacles such as smog and rain.
1. Millimeter-Level Precision
±5 mm accuracy with 1 mm resolution over a 40-meter range.
2. Ultra-Low Power
Consumes only 12mA at 3.7V – ideal for battery-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 PTFE lens for anti-corrosion and heat resistance.
5. Compact & Lightweight
Diameter 32mm, weight only 23g – easy to integrate into space-constrained systems.
6. Standard Communication
UART interface with MODBUS protocol for easy integration.
Main parameters
| Part number | LDRR05B |
| Transmission frequency | 77-81GHz |
| Output Power (EIRP) | 13-20dBm |
| Beam width (-3dB) | Vertical 25°,Horizontal 25° |
| External lens antenna with beam width (-3dB) | Horizontal 3°,Vertical 3° |
| Working voltage | 3.3-5V |
| Working current | 12mA |
| Output | UART |
| Baud rate | 115200 |
| Protocol | MODBUS/Private protocol |
| Working temperature | -45℃~+85℃ |
| Refresh rate | 0.1-25Fps |
| Module size (diameter x height) | 32 x 1.2 mm |
| Weight | 23g |
| Ranging range | 0.1-40m |
| Measurement accuracy | ±5mm |
| Resolution | 1mm |
| Start-up time | 100ms |
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Application
It features high precision, low power consumption, and strong anti-interference ability.
It is suitable for water conservancy measurement in lakes, rivers, reservoirs, etc., as well as water level monitoring scenarios in tanks, water storage pools, 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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