high medium resistance of materials enamel, Hastelloy C4 2.4610 and stainless steel 1.4571high protection class IP67 with connectorshort-circuit proof switching output 1?A, high side or low side switchMAX sensor or MIN sensorswitch point factory pre-set for the following media:de-ionised water (conductivity < 4,2??S/cm): 28?mm ± 2?mmtap water (conductivity ??300??S/cm): 22?mm ± 2?mmother media upon request; switch point adjustment via programmable interface on request