GQ GMC-300E Plus Geiger Counter Nuclear Radiation monitor Data Logger
This popular Geiger Counter is designed and developed by GQ Electronics (Seattle, WA). It is a portable and convenient device. It includes all the necessary features for nuclear radiation detection. It features automatic data recording. It can continually monitor the radiation and log the data each second into internal memory, and then play back later. It is a useful and easy-to-use device.
Easy to Read
Large Font mode can be selected from CPM, uSv/h and mR/h anytime
Easy to Understand
Graphic mode graphs the last 60 seconds radiation changes in real time
Easy to Get
Text mode provides all information you needed in one screen per selected or predefined
Easy to Configure
Menu mode allow user to easily set the configuration of the device
Stand alone mode
Most easy way to work with. Hand held and easy to carry around
Work with a PC
Download the history data from a PC. Real time monitoring on a PC
Data collection
Comes with free software for data collection and analyze
Log data to server
Log the unlimited data to GMCMap server in real time
| Radiation Detection |
Beta, Gamma, and X-Ray |
| Sensitivity to Gamma Radiation |
0.1~1 MeV |
| Own Background |
0,2 Pulses/s |
| Working Voltage |
3.7-5V |
| LCD Display |
Dot matrix with back light |
| Working power |
0.045W - 0.2W |
| Power |
3.7V rechargeable battery / USB power |
Field Testing
The handheld device can be easily carried to fields for close-up radiation monitoring or testing
Fruit and Imported Food Radiation Testing
The device can detect the radiation to determine if the fruit and imported food have been radioactively contaminated. Avoiding contaminated food is crucial to our health
Seafood Radiation Testing
Many seafoods may be contaminated with nuclear radiation materials. It is useful and safe to check the seafood before we consume it
Radioiodine (I-131) Therapy
The GMC-300E Plus can be used to monitor the radiation level during the treatment and keep the family members at a safe distance. It can be used to monitor if anyone is under I-131 Treatment around you
The GQ GMC-300E Plus has a high contrast black/white LCD module, one front LED indicator, and one analog data port. The audio data port can be directly connected to any third party device application as data input, such as iPad.
It is designed to be a portable and convenient device. The device comes with built in audible and visual signals for the level of radiation detected. It can be used for radiation detection and monitoring both indoor and outdoor, as well as in other similar environments. It features automatic data recording. It can continually monitor the radiation and log the data each second into internal memory. When connected to a PC, software can download the radiation history data to the computer and the user is able to analyze those data later.
The device is equipped with an USB port, utilized for communication and external power supply/charging of the internal rechargeable Li-on battery.
The GQ GMC-300E Plus internal rechargeable battery can be charged with a generic USB adapter/charger. Using the adapters, continuous data monitoring is possible. Using either power adapter you will not have to worry about the batteries charge condition or any data loss.
The software newly added Geiger Counter World Map connectivity. It allows user to store the reading data via internet to server. User is able to retrieve the history data any time, anywhere in the world. The service is free to GQ GMC users with unlimited history data storage space.
The main board also has a real time clock on board for time related data logging purposes.
The USB port communicates with the GQ GMC-300 Soft Geiger Counter software and the GQ Geiger Counter Data Viewer software.
The GQ Geiger Counter Data Viewer software can download the time stamped radiation (history) data from the unit and save it on a computer for future references and analysis.
For professional data logging of radiation data, the GQ Geiger Counter Data Viewer (Logger) may be downloaded for free. An even more advanced version, the GQ Geiger Counter Data Logger PRO software may be purchased at low cost from GQ Electronics LLC.
The GQ data viewer software also can be used as realtime data monitor. user is able to save the realtime data into Excel. csv text format, HTML file format etc.
GQ GMC-300E Plus provides open GQ RFC1201 communication protocol for easier system integration. See software download section for detailed protocol.
Holiday Shipping Details & Extended Holiday Returns 
