IP 67-sealed World-Beam QS30 Series, available in 10-30 Vdc or 12-250 Vdc/24-250 Vac universal voltage formats, has EMI/RFI-protected circuitry and status indicator. It comes in opposed, diffuse, retroreflective, polarized retroreflective, and fixed-field models. While dc sensor has solid-state bipolar output, self-contained photoelectric ac/dc universal voltage model offers integrated SPDT e/m relay.