The Optiwave 6300 C Radar instrument is ideal for solid measurement of uneven silo contents. It measures powder, granulates and bulk solids in buffer silos, hoppers, bulk storage containers and on conveyor belts. Choose a 3-in. diameter (DN 80) antenna made of polypropylene (PP) or Teflon (PTFE) or a 6-in. (DN150) PP antenna. Stainless- steel horn antennas up to 6 in. with a built-in horn purging feature are also available.