Three Radiological Instruments in One.

Survey Meter
Takes real time radiation readings and displays the count/second and equivalent radiation level in either mR/hr or mSv/hr. These are real time one second intervals readings without any averaging. Radioactivity is random disintegrations, and meter readings will fluctuate second by second, because it displays the actual number of radioactive particles detected. Analog meter geiger counters on the other hand provide average radioactivity levels.

Background Radiation Monitor
Take 1 minute or 5 minute readings. Displays accumulated count and equivalent background radiation in either uR/hr or uSv/hr.

Scientific Instrument & Industrial Tool

Our Digital Geiger counters are calibrated using CS-137 Gamma source and have been certified accurate in reading radiation levels to +/- 10%. Each Certified Geiger counter will have different accuracies depending upon the tolerances of the internal components. Typically certified accuracies are between plus or minus ten to twenty percent.

See NRC Calibration & Certification Page Here.

Perfect for schools and industry. In the laboratory the Digital Geiger Counter may be used to conduct nuclear experiments and measurements. Free Windows 98 and XP graphing programs, see below.

Perfect for schools and industry. In the laboratory the Digital Geiger Counter may be used to conduct nuclear experiments and measurements. Free Windows 98 and XP graphing programs, see below. Graphic Files may be exported to Excel spreadsheets.

Click here to see experiment measuring radioactive decay of TV screen dust.

In industry the Digital Geiger Counter may be used for HAZMAT, Emergency Services, compliance, screening etc.

Applications:

• Education - Classroom demonstrations and experiments
• Emergency Services and Domestic Preparedness
• HAZMAT and Compliance Verification
• Dirty Bomb Screening and EMT's

The high contrast Liquid Crystal Display (LCD), 16 character by 2 lines, provides an easy to read output, see image below.

Secondary indicators; audio (clicks) and visual (LED) included. Also includes a headphone jack and a power jack for external power.

Software Manual(PDF file 1.9 meg)

On Line Interactive Software Tutorials

Both Digital Geiger Counters GCA-04 and CGA-04W outputs serially via RS-232 the counts per second to our Windows PC program for charting and recording the measured radiation over time (see WIN XP screen shot). Saved graphic data files may be imported into Microsoft Excel.

Digital Geiger Counter Technical Data

Radiation Detected    Alpha, Beta, Gamma and X-Rays.

Detector       Geiger-Muller tube Ne + Halogen filled with a .38" effective diameter 1.5-2.0 mg/cm2 mica end window.

Detector      · Alpha above 3.0 MeV
Sensitivity   · Beta above 50 KeV
                  · Gamma above 7 KeV

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. Secondary indicators; audio (clicks) and visual (LED) included. Also includes a headphone jack.

RS-232 Standard RS-232 output for PC available via DB-9 serial.

Power 9 volt battery Or AC Adaptor for extended operation

Case Size 7.5" x 4.1" x 1.2" .PDF Drawing(50K)

LCD Display

Survey Meter Mode                              Background Radiation Monitor Mode
Download Digital Geiger Counter charting software for Windows XP (3 MB). Download Digital Geiger Counter charting software for Windows 98 (3 MB).

These radiation shields friction fit on the open end of the Geiger Counter wand. Each shield helps to block radiation from reaching the internal GM tube inside the wand.

The shields are useful in performing nuclear tests and experiments.

The Screen shield is an open mesh nylon screen that allows all radiation including alpha to pass through. The paper shield blocks alpha radiation, while permitting beta and gamma radiation. The aluminum shield attenuates beta radiation and the lead shield attenuates gamma radiation. Shields may be purchased separately or in a set.

USB Adapter for Digital Geiger Counters and RS-232 Adapter.

Description
The USB PDA/Serial Adapter (GUC232A) provides you with an external serial (DB- 9 male) Plug-n-Play connection for use with computers, notebooks, and hand held computing devices that support USB. The PDA/USB Serial Adapter has a standard type A USB plug.

This USB PDA/Serial Adapter provides The GCA-04, GCA-04W and RS-232 Adapters with high quality serial connection. This makes the USB interface transparent to serial peripherals, allowing them to easily interface with USB computers. This eliminates the setup hassle found with traditional serial port connections. This device also supports energy saving suspend and resume operations.

Features
* Full Compliance with USB specification v1.1
* Work with serial devices, converts the serial interface to USB.
* Supports the RS 232 Serial interface
* Supports automatic handshake mode
* Easy Installation

Requirements

* For PC Users
* 300 Mhz CPU
* Windows® 98SE, 2000, ME, XP
* Available USB port