measuring conditions.Antenna size is small, easy to install; non-contact radar, no abrasion, no pollution. Which is almost not influenced by corrosion and foam. And virtually unaffected by water vapor, temperature and pressure changes in the atmosphere. Serious dust environment has little effect on high frequency level meter. Shorter wavelength, and has a better reflection on inclined solid surface. Beam angle, energy concentration, while enhanced echo and to avoid the interference. Measure blind spots smaller
canisters measure will achieve good results. The low noise ratio, even in case of fluctuations can get
better performance. High frequency is the best choice for measuring solids and low dielectric constant.