Gamma Scientific model DR-2000 Radiometer / Photometer - Clean

Gamma Scientific DR-1600 Radiometer/Photometer

HF Scientific Model 220 Replacement Source Lamp 50096

Fisher Scientific Black Ray Long Wave UV Lamp B100YP (Works good)

Gamma Scientific Inc 220-1A Luminance Standard Head

SCIENTIFIC COLUMBUS MODEL 6444 TRANSDUCER CALIBRATOR

Lot Of 3 EG&G Gamma Scientific CIE127 CONDITION TUBES

Gamma Scientific Model D-46A Photomultiplier Detector with GT-15 Shutter