Gamma GM Detectors

Model 133 Series

Gamma Detector

Detector Type: Energy-Compensated GM
Sensitivity (Cs-137):
- 133-2:1000 cpm per mR/hr
- 133-3: 450 cpm per mR/hr
- 133-4: 100 cpm per mR/hr
- 133-6: 18 cpm per mR/hr
Linear Range (w/o DTC)
- 133-2: 0.1 to 200 mR/hr
- 133-3: 0.1 mR/hr to 1 R/hr
- 133-4: 1 mR/hr to 2 R/hr
- 133-6: 4 mR/hr to 6 R/hr
- 133-7: 25 mR/hr to 30 R/hr

Model 44-6

Beta-Gamma Detector

Detector Type: GM with Beta Window
Sensitivity (Cs-137): 1200 cpm per mR/hr
Linear Range: ±10% up to 50 mR/hr

Model 44-38

Beta-Gamma Detector

Detector Type: GM with Beta Window
Sensitivity (Cs-137): 1200 cpm per mR/hr
Linear Range: ±10% up to 50 mR/hr

Model 44-150 Series

High-Sensitivity Gamma Detector

Detector Type: Energy-Compensated GM
Sensitivity (Cs-137): 1200 cpm per mR/hr
Linear Range: ±10% up to 50 mR/hr

Model 44-183

Shielded Gamma Detector

Detector Type: Energy-Compensated GM
Sensitivity (Cs-137):
- 44-150-1:
  4000 cpm per mR/hr
- 44-150-3:
  13,500 cpm per mR/hr
Linear Range:
- 44-150-1:
  0.1 to 50 mR/hr
- 44-150-3:
  0.01 to 8 mR/hr