This detector operates between 850 to 1000 volts, and is compatible with any Ludlum instrument capable of supplying 900 Vdc and an input sensitivity of 30 mV or higher.
Model 44-40: utilizes a lead housing to reduce background
Model 44-9-18: incorporates a gooseneck-type flexible end with an extension handle stretching to 0.9 m (36 in.) length
Flatten the Energy Response
The venerable GM pancake detector has a significant over-response at lower energies that produce false exposure and dose readings. To correct this situation, Ludlum offers simple snap-on filters anytime exposure or dose measurements are required.