2"Datasheet: https://www.hamamatsu.com/resources/pdf/etd/R9800_TPMH1298E.pdf Hamamatsu R9800-100SKU: R9800-100-10TrackingSerial NumberPhysical LocationZT1259In box in labZT1258In box in labZS5636In box in labZS5647In box in labZT1248In box in labZT1245In box in labFB2923In box in labFB3380In box in labFB4468In box in labFB5224In box in labFB5865In box in labFB6416In box in labDD2240In box in lab