1. Model 732, PC-Based Gamma MCA System 
1) 1k Multi Channel Analyzer
2) 5.1 x 5.1 cm (2 x 2 in.) NaI(Tl) Detector
3) USB PC Interface
4) Includes PC Spectrum Acquisition & Analysis Software 

2. Model 733, PC-Based Gamma MCA System
1) 7.6 x 7.6 cm (3 x 3 in.) NaI(Tl) Detector