Small antenna size, easy to install; Non-contact radar, no wear, no pollution.
Almost no corrosion, bubble effect; almost not affected by water vapor in the atmosphere, the emperature and pressure changes.
Serious dust environment on the high level meter work has little effect.
A shorter wavelength, the reflection of solid surface inclination is better.
The measuring range is smaller, for a measurement will yield good results.
Beam angle is small, the energy is concentrated, can enhance the ability of echo and to avoid interference.
High signal-to-noise ratio, the level fluctuation state can obtain better performance.
High frequency, measurement of solid and low dielectric constant of the best choice.