The Model LS8000 Level Switch’s ultra-high sensitivity allows the measurement of bulk solids with very low dielectric constants, such as fly ash or plastic flakes. The probe’s rugged construction is solid ½” diameter 316 SS. The remote mounted electronics can be placed up to one mile from the sensing probe. The RF technology allows the unit to operate even when the probe is fouled with material. An optional High Temperature Probe with ceramic insulator is capable of sensing materials heated to 1400°F continuously. All level switches have a built-in fuse, field adjustable time delay and 5 amp DPDT relay output.