GCK-01 with GMT-01
Alpha, beta and gamma detection
Build • Detect • Experiment
Geiger Counter Kits and Components
Build your own radiation detector with our GCK-01 and GCK-02 kits, then expand its capabilities with a digital meter adapter.
Kit or assembled Tube options Digital pulse outputGCK-01 Geiger Counter Kits
Kits from $80.50
The GCK-01 series is designed for detecting radioactivity and performing nuclear experiments. Choose a ready-to-build kit or an assembled and tested unit. An audible click and an LED blink indicate each detected radioactive particle.
Each kit includes a printed circuit board, all electronic components and a construction manual. A GM tube is included when you select a tube or wand configuration; the GCK-01 base kit has no tube.
The GMT-01 detects alpha, beta and gamma radiation. The GMT-02 and GMT-06 detect beta and gamma radiation. See our Geiger Counter Tubes page for more information.
Digital output
A TTL logic pulse is produced for each detected particle. Connect accessories such as the DMAD Digital Meter Adapter.
External power
A 2.5 mm power jack supports an external power supply.
Headphone jack
Monitor detection clicks through the headphone connection.
External wand options
GMT-01 and GMT-02 tubes are available as external wands.
Optional enclosure
Case size: 3.5" × 5.75" × 1.25".
High voltage: The powered bare circuit board contains exposed high-voltage components. Capacitors may retain a high-voltage charge after power is removed. A project box or case is recommended and is available separately for the selected kit configuration.
GCK-02 Geiger Counter Kits
Kits from $99.95
The GCK-02 produces an audible click and flashes an LED for each detected radioactive particle. Two buffered TTL digital outputs support accessory instruments, including data loggers, digital meter adapters, RS-232 adapters and true random number generators.
The pulse output has been measured at more than 5,000 counts per second.
GCK-02 with GMT-01
Alpha, beta and gamma detection
GCK-02 with GMT-02
Beta and gamma detection
GCK-02 with GMT-06
Beta and gamma detection
Using an analog meter adapter, the counter can approximate three radiation ranges: 0–1 mR/hr, 0–10 mR/hr and 0–100 mR/hr (or 55 mR/hr, depending on the selected GM tube). With a DMAD, it is compatible with our free radiation graphing and monitoring software.
The GCK-02 includes a printed circuit board and all electronic components. A GM tube is included with GCK-02-01, GCK-02-02 and GCK-02-06 configurations; the GCK-02 base kit has no tube. A 2.5 mm jack is provided for external power.
High voltage: The powered circuit board contains exposed high-voltage components. Capacitors may retain a high-voltage charge after power is removed. A project box or enclosure is recommended.
Digital Meter Adapter
Kit $59.95
Add a digital display, pulse counting and random number generation to an analog Geiger counter.
The DMAD reads positive +5 V pulses, counting each pulse that represents a detected radioactive particle. Select a one-second interval for counts per second (CPS) or a sixty-second interval for counts per minute (CPM).
Its random number generator uses radioactive particle detections to generate true random numbers. A serial output, used with an optional TTL/USB cable, sends count data to a Windows program.
| Pulse resolution and range | 1 CPM–9,360 CPS |
|---|---|
| Radiation resolution and range | 1.0 µR/hr–655 mR/hr |
| Metric range | 0.01 µSv/hr–6.5 mSv/hr |
| Display | Backlit 16-character × 2-line LCD |
Kit or assembled and tested
Choose the DMAD-04 kit for $59.95 or the DMAD-04A assembled and tested unit for $89.95. An optional acrylic stand is available for $10.95.
