HLK-LD2413 24G Water Level Detection Sensor Radar Module Liquid Detection Non-Contact Sensor Switch

Using FMCW waveform and the chip's proprietary advanced radar signal processing, the product achieves accurate detection of liquid and material levels. It is mainly used for water level measurement in scenarios such as hydrological monitoring, urban pipe networks, and firefighting water tanks. The module supports UART output, is plug-and-play, and can be flexibly applied to various smart environments.

Product Parameters

• Frequency: 24GHz (23~27GHz)
• Modulation Type: FMCW
• Scanning Bandwidth: 4GHz
• Detection Range: 0.15m~10m
• EIRP Parameter: 11dBm (-6dB two-way)
• Horizontal/Vertical Range: ±12°
• Distance Accuracy: ±3mm (theoretical value)
• Reporting Cycle: 160ms (configurable 50~1000ms)
• Operating Temperature: -40°C~+85°C
• Package Dimensions: 31.651.62.2mm
• Power Supply Range: 3.3V (3.0~3.6V) @1A

Precautions

• Ensure the sensor's antenna is directly facing the detection area, and the surrounding space is open and unobstructed.
• The installation position of the sensor must be secure and stable, as sensor movement will affect detection accuracy.
• Ensure there are no moving objects or vibrations behind the sensor. Since radar waves can penetrate objects, the rear lobe of the antenna may detect movement behind the sensor. To mitigate this, use a metal shield or metal backing to block the rear lobe and reduce the impact of objects behind the sensor.
• If there are multiple 24 GHz radars in the working environment, avoid having their beams face each other, and install them at a distance to minimize potential interference.
• The power input voltage range is 3.0V~3.6V, with no significant spectral peaks in the power ripple within 2MHz. This solution is provided as a reference, and users should consider appropriate electromagnetic compatibility designs, such as ESD protection and lightning surge protection.