The AMP-200, or Area Monitor Probe, is a GM tube-based, waterproof rate meter. The AMP-200’s detector features linear response from 10 mSv/h to 100 Sv/h (1 R/h to 10,000 R/h).
Detector: GM-tube (4G60M)
Energy Range: 60 KeV to 2 MeV.
Measuring Range: 1 mSv/h to 150 Sv/h (0.1 R/h to 15,000 R/h)
Sensitivity (137Cs): 77 cps per R/hr
Accuracy: ±10% of reading within measuring range
Units: mR/h and mR or m Sv/h and m Sv