The analog meter is calibrated in mR/hr that is useful for approximating radiation levels. There are three pre-set ranges:
Ranges

• 0-1 mR/hr (Range switch set to 1X)
• 0-10 mR/Hr (Range switch set to 10X)
• 0-100 mR/hr (Range switch set to 100X)

The geiger counter has a digital output that provides a TTL logic pulse each time a radioactive particle is detected. Used to connected to various digital adapters and network software.

All of our assembled, in-case, geiger counters now have an optional add on belt clip. It is available on the following models: