OPTEX VXI detectors 862-01-VXI-RDAM-X5 OPTEX VXI Xwave wireless detectors 862-01-VXI-RAM OPTEX VXI Xwave wireless detector 862-01-VXI-R OPTEX VXI Xwave wireless detectors 862-01-VXI-DAM-X5 OPTEX VXI wired detector 862-01-VXI-AM OPTEX VXI wired detector 862-01-VXI-ST OPTEX VXI wired detector 862-01-VXI-R-LC OPTEX VXI wireless ready - low current detector