The WaveTrak 5200 guided wave radar level transmitter from ASI Instruments is used for detection and measurement of dry bulk solids. The company says its two-wire, loop-powered device is unaffected by dust or feed flow, accurately measuring the level of materials with dielectric constants as low as 1.3, even in the presence of varying temperatures and pressures. The unit operates at up to 1,500 psi.

ASI Instruments; 800-245-7056;