Official manufacturer reference for 86120B from its guide; the drawing is visibly marked 86120A. The depicted model and wavelength marking differ, so exact specifications, connectors, and actual used-unit appearance must be confirmed.
Legacy ANDO-branded AQ6317 reference image for the Yokogawa catalog record. It shows the unsuffixed AQ6317, not the AQ6317B or AQ6317C, and is not a photo of the offered unit.
