The Victoreen series of field test sources and field calibration fixtures all for efficient field checks of detector functionality. While this equipment is specifically designed for use with Victoreen detectors, it is able to be adapted to detectors of other manufacturers.
A field calibrator that can be used to verify calibration of GM and ion chamber detectors
Model 848-8 Series Field Test Sources »
A field calibrator that can be used to verify calibration of high range detectors
Model 878-10 High Range Ion Chamber Detectors »