GCK-01 Circuit (no tube)
GCK-01 with GMT-01	GCK-01 with GMT-02	GCK-01 with GMT-06
GMT-01	GMT-02	GMT-06
α(alpha) β(beta) γ(gamma) detection	β(beta) γ(gamma) detection	β(beta) γ(gamma) detection

This Geiger counter outputs audible click and will blink a LED with each radioactive particle it detects. In addition it has two digital outputs that may be connected to a number of accessory instruments; a data logger, Digital Meter adaptor that outputs an approximate radiation level, RS-232 adaptor to plot radioactivity on a PC, and true random number generator.

Using the analog meter adaptor, the geiger counter can approximate 3 radiation ranges: 0 to 1 mR/hr, 0-10 mR/hr and 0-100 mR/hr (or 55 mR/hr depending upon GM tube selected). If that isn't enough the Geiger counter is compatible to the Radiation Network software.

Digital Output -- Provides a TTL logic pulse each time a radioactive particle is detected. Used to connected to various digital adapters:

Digital Meter Adapter -- Turns our analog into a accurate digital geiger counter

External Power Jack

Geiger Counter Kit GCK-01:

• Printed Circuit Board
• GM Tube ( on GCK-01-1, GCK-01-2, GCK-01-6, but not GCK-01*)
• All electronic components

This USB event data logger is a useful accessory that can record the readings on your geiger counter and store them for analysis on your computer.

Analog Geiger Counters are useful for detecting radioactivity and performing nuclear experiments. The models GCK-05 and GCK-06 are ready to build kits. These Geiger Counters primary indicators are an audio click and an LED blink each time a radioactive particle is detected.

The Model GCK-06 has an analog meter. The Geiger-Mueller tube (GMT-01), included in the kit, is a Ne + Halogen filled, with a .38” effective diameter 1.5-2.0 mg/cm2 mica end window.

The Geiger Counter kits GCK-05 and GCK-06 detects the following radiation.

• Detects alpha above 3.0 MeV.
• Detects beta above 50 KeV.
• Detects gamma above 7 KeV.

The GCK-05 and GCK-06 Geiger Counters have the following features:

Headphone / Analog Meter Jack
Digital Output -- Provides a TTL logic pulse each time a radioactive particle is detected. Used to connected to various digital adapters:

Digital Meter Adapter -- Turns our analog into a accurate digital geiger counter

External Power Jack

Geiger Counter Kit GCK-05 & GCK-06 includes:

• Printed Circuit Board
• GM Tube
• All electronic components

Case Size 5.6" x 3.2" x 1.5" .PDF Drawing (50K)

The New Digital Meter Adapter is now a universal expansion module. It is a combination of the original Digital Meter Adapter, RS 232 interface adapter & Random Number Generator Adapter. The new DMAD has all three functionalities in one module to enhance the capabilities of Geiger Counters.

Countable Pulse Resolution & Range         1 Count Per Minute (CPM) - 9,360 Counts Per Second (CPS)
Radiation Resolution & Range                   1.0 uR/hr - 655 mR/hr
          (Metric)                                       .01 uSv/hr - 6.5 mSv/hr

LCD Display 16 character by 2 line LCD (liquid crystal display) with back light provides easy to read output.

May be Purchased as a kit or assembled and tested

Digital Meter Adapter Construction Article

More Information

The Radiation Meter may be incorporated into a standard analog geiger counter to provide a visual readout of the approximate radiation level.

Click here to see schematic.

The Radiation Meter may be incorporated into a standard analog geiger counter to provide a visual readout of the approximate radiation level.

Click here to see schematic.

The Radiation Meter may be incorporated into a standard analog geiger counter to provide a visual readout of the approximate radiation level.

Click here to see schematic.