GQ GMC-320 Plus Geiger Counter

The GQ GMC-320 Plus is a professional, portable, and connected Geiger counter designed for indoor and outdoor radiation monitoring. Featuring a dot-matrix LCD display, visual and audible signals, and internal memory, it allows automatic data recording to the second, with subsequent analysis on a PC.

Real-time analytics & advanced connectivity

The GMC-320 Plus features a USB port for charging and data transfer. It comes with GQ Geiger Counter Viewer and Logger software for:

• Visualize data in real time
• Download time-stamped logs
• Export to CSV, HTML, Excel
• Share readings to the cloud via GQ World Map

It also features an internal clock for time-stamping and compatibility with the open RFC1201 protocol.

Technical characteristics

• Detection: β (beta), γ (gamma), X-rays
• Gamma sensitivity: 0.1~1 MeV
• Clean background: 0.2 pulses/s
• Display: Dot matrix display with backlight
• Automatic recording: 1 measurement/sec in memory
• Connections: USB (power + data)
• Battery: Rechargeable Li-ion 3.6V/3.7V (included)
• Power supply: USB or AC/car adapter
• Dimensions: 12.7 x 7.1 x 7.5 cm
• Weight: 220 g

Typical statements (in CPM)

• Natural background: 20~40
• Granite table (public park): 50~83
• 238U Uranium Glass Bead: 320
• Uranium ore 238U: 2905
• Radioactive source 5µCi: 26500

Why choose the GQ GMC-320?

• Reliable semi-professional device
• One of the best technology/price balances for civil radioactive monitoring
• Time-stamped records, automatic backup
• Real-time graphical visualization on screen

Use

• Turn on the device, place on the measurement area
• View CPM, dose, and history values