The Bicron RSO-5 is an air-vented ion chamber instrument that detects and measures photons and beta radiation.
ion-bicronrso51Range: 0-5000mR/hr
Radiation Detected: photons from12 keV to 7 Mev window open; 25 keV to 7 MeV for window closed; 40 keV to 7 MeV through the side; Measures beta energies > 70 keV
Detector: Internal, tissue equivalent, organic scintillator 
Warm Up Time: None
Temperature: Operational from -40°F to 140°F Humidity: <5% change in reading from 10% to 95% RH
Geotropism: Within +2% of full scale