Gamma Scientific model DR-2000 Radiometer / Photometer - Clean

Early Digital Radiometer Gamma Scientific DR2 Vintage Test Equipment

Gamma Scientific DR-2 Digital Radiometer

GAMMA SCIENTIFIC D-46 PHOTOMULTIPLIER DETECTOR

Gamma Scientific Model D-46A Photomultiplier Detector

Gamma Scientific DR-2550-1 Photometer - Super clean, excellent condition

EG&G Gamma Scientific DR-1600 Radiometer Photometer FSCM 23673

International Lights IL1350 RADIOMETER/ PHOTOMETER USED.