The GCA-07 Digital Geiger Counter

Accuracy you can trust

Used in Industry, Medical, and Education. NRC certifiable accuracy - because accuracy matters!

Buy Button

Why NRC Certification is important!

Join Our Newsletter     digital geiger counter gca-07w

GCA-07W Digital Geiger Counter

         1) Detects environmental radioactivity.
         2) Measures background radiation and anything above background radiation.
         3) Government NRC certified* accurate Digital Geiger counters
         4) Free Technical Support.

Radiation and Geiger Counter Specialists and Experts         Images SI Inc. BBB Business Review

Don't buy an inferior Geiger Counter read our:
Special PDF File. "How to buy a Geiger counter!"
pdf icon
Detecting radioactive contamination in food coming soon, sign up now.

US Gov't increased the amount of allowable radioactive contamination, read more.

Don't count on them to tell you, count on the GCA-07 and tell them.

GCA-07 Digital Geiger Counter

GCA-07 Digital Geiger Counter

Detects Alpha, Beta, X-rays and Gamma radiation

Compare GCA-07W and GCA-07

Two Configurations

GCA-07W and GCA-07 (Internal Tube)

Geiger Counter Software
Free Windows 7 Geiger counting software included.

Track and graph your Geiger counter's readings, save data, viewer program, Excel compatible.

High Contrast LCD

High Contrast LCD

Provides CPS/CPM data and its equivalent radiation level

External wand of the GCA-07W

External wand of the GCA-07W

.85" diameter and 5.75" long
Read more

Basic Port
Basic Port

External Power, Head Phone, USB Serial/TTL.

USB to 3.5mm
USB to 3.5mm Cable

The USB TTL Serial cable provide connectivity between USB and serial UART interfaces at 5V.
Read more

NRC Certification Available
NRC Certification Available

We don't just say our Geiger counters are accurate we can certify it.
Read more

Example Frame

Serving a Mission of Moving Science Forward

Buy Button

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

Digital Geiger Counter Technical Data,

Detector Features:

  • NRC Certification

    With NRC certification you have a independent US gov't license laboratory testing and certifying your Geiger counter's accuracy. NRC certifications are available at additional cost.*
  • Radiation Warning Symbol

    Detects and Measures: Alpha, Beta, X-ray and Gamma Radiation

  • audio speaker output

    Audible Speaker Output

    Each radioactive particle detected produces an audible click.
    Audio output may be turned on and off.
  • simple interface

    Simple User Interface

    Front panel switches provide an intuitive and easy-to-use interface for all Geiger counter functions.
  • Configurable Measurement Window

    Selectable Counts Per Second (CPS) or Counts Per Minute (CPM).
  • Geiger counter headphone jack

    Headphone Jack

    For private listening also useful when prospecting.
  • Geiger Counter easy to read LCD display

    High Contrast LCD Screen

    Easy to read Count measurements and Equivalent radiation level. Backlight available for low light conditions.

  • Low Battery Indicator

    Low Battery Indicator

    External Power Supply Jack
    for AC adapter.

Leading our competitors:

  • fast next day shipping

    Fast Shipping

    We ship most domestic orders by the next business day.
  • expert staff staff available to answer questions

    Expert Staff

    We can answer any questions you may have.

  • free online interactive tutorials

    Free Software and Tutorials

    Free Radiation detection and monitoring software. Online interactive tutorials see more...
  • Best Value Geiger Counter

    Value Product

    Certifiable accurate radiation detection and measurement instrument.
Buy from

Free online software updates and support pages available.

Try Before You Buy - Rentals
Images SI Inc., is a U.S. based company that manufactures and assembles in the United States.
* NRC Certification is available from an independent U.S. Government licensed laboratory at an additional cost.

Risk Free Money Back Guarantee!

If our Geiger counter doesn't meet your needs, let us know within 30 days and we will issue a UPS Merchandise Return Label, (domestic USA only) for a no hassle refund.
      Returns must be in new and unused condition.

GCA-07 - $429.95 

Digital Geiger Counter

GCA-07W - $489.95 

Digital Geiger Counter with Wand

Additional Options:
NRC Certification - $125.00

AC Adapter - $12.95