1. Non contact measurement, instruments are basically maintenance free;
2. Can detect high temperature, high pressure, and highly corrosive media in containers.

It depends on the actual situation.

In the industrial production process, equipment such as polymerization kettle, reaction kettle, catalyst feeding tank, degassing bin, flash tank, material bin, container, boiler ash bin, thermal power plant coal bin ash bin, ash hopper, storage tank, etc. Equipment such as ammonia separation tower, condensing tower, medium pressure separator, copper washing tower, methanol separator, absorption tower, regeneration tower, synthesis tower, stripping tower, glass melting furnace, polymerization kettle, oxidation kettle, reaction kettle, storage tank, etc.