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The radar liquid level meter emits frequency-modulated continuous wave signals (76–81 GHz) through its antenna. These signals propagate at the speed of light and reflect upon encountering the measured medium's surface. The same antenna receives the reflected signals. The frequency difference between the transmitted and received signals is proportional to the measured distance. The collected frequency difference signals undergo Fast Fourier Transform (FFT), producing a reflected echo spectrum from which the distance to the target is calculated.

Millimeter-wave RF chip enables a more compact RF architecture, higher signal-to-noise ratio, and smaller blind zones.
5 GHz operating bandwidth ensures higher measurement resolution and accuracy.
Narrowest 6° antenna beam angle minimizes the impact of interference from installation environments, simplifying installation.
Integrated lens design with a compact form factor.
Low-power operation with a lifespan exceeding 3 years.
Supports mobile Bluetooth debugging, facilitating on-site maintenance.