LMS-R5 optical sensor by Sunmulon (mulon) japan. as used in high end scanners for detecting the presence of thin films. Status: RNOS (Rare New Old Stock) - no longer manufactured by Sunmulon. Tested components: YES ( we have a test jig) awaiting datasheet. Note this item has the optical transmitter and receiver mounted under a clear lens in the same unit, unlike later R5 units. RoHS compliant: probably not as this item was deleted when compliance was established. *** in stock again from 12-2-2021 ***