Model 127GWMTJ
- Height: 5.9 inches (15.0 cm)
- Diameter: 5.7 inches (14.5 cm)
- Well Height: 3.0 inches (7.6 cm)
- Well Diameter: 2.80 inches (7.1 cm)
- ~0.5 Free board Volume: 1.26 liters
- Detector Type: Germanium
- EndCap Diameter: 2.75 inches (7.0 cm)
Model 130GWMTJ
- Height: 5.9 inches (15.0 cm)
- Diameter: 5.7 inches (14.5 cm)
- Well Height: 3.0 inches (7.6 cm)
- Well Diameter: 3.05 inches (7.7 cm)
- ~0.5 Free board Volume: 1.18 liters
- Detector Type: Germanium or Ge-Li
- EndCap Diameter: 3.00 inches (7.6 cm)
Model 133GWMTJ
- Height: 5.9 inches (15.0 cm)
- Diameter: 5.7 inches (14.5 cm)
- Well Height: 3.0 inches (7.6 cm)
- Well Diameter: 3.34 inches (8.5 cm)
- ~0.5 Free board Volume: 1.10 liters
- Detector Type: 3×3 NaI
- EndCap Diameter: 3.25 inches (8.3 cm)