. "SDN:S04::S041155" . "" . . "2018-12-05 05:31:40.0" . "1" . "2018-12-05 05:31:40.0" . "accepted"@en . "SDN:S04::S041155" . "false" . "An instrument that emits light of unknown wavelength and measures how much of it reaches a receptor accurately located at fixed but unknown distance away from the transmitter. Deployed on a package of instruments or sensors as the second sensor of this type."@en . . "transmissometer (second sensor)"@en . "SDN:S04::S041155" . . "1" . .