Cyclonaire CycloLevel™ Sensors read the presence or absence of material in contact with the sensor probe by monitoring changes in the capacitance caused by the difference in the dielectric constant of the vessel material and air. The sensors operate at approximately 6 KHz, well below the RF level. Because they operate at very low current and frequency, they will not interfere with nearby electronic plant equipment and are not susceptible to interference from other electronic devices. Cyclonaire CycloLevel Sensors are ideally designed for high-level and low-level detection in powders and bulk solids. Mounting accessories allow CycloLevel units to be used with almost any shape or type of bin, silo, tank, hopper, chute, or other vessel where material is moved, stored, or processed. All wetted parts are 316 stainless steel. A variety of probe styles is available for the sensors, ranging from flexible cable probes for aggregate to 3-A/USDA-compliant probes that are food-grade safe.