ANSI-STD N323A Certification Available
Optional certification ensures compliance and accuracy for educational settings and regulatory standards.
Professional radiation detection · Made in the USA
GCA-06W Digital Geiger Counter
Reliable radiation detection for educators & amateur scientists.
Equip your educational laboratory, classroom, or field activities with the accurate and easy-to-use GCA-06W Digital Geiger Counter—trusted by science educators, university professors, and hobbyists.
Compact handheld design
External wand probe
Alpha, beta, gamma & X-ray
Built for hands-on science
Reliable measurements. Practical learning.
Explore the performance, handling, and support features of the GCA-06W.
High-Quality American-Made GM Tube (LND712)
Detects Alpha (>3 MeV), Beta (>50 KeV), and Gamma/X-rays (>7 KeV).
Compact, Ergonomic Design
Easy-to-handle handheld design (5¾" x 3½" x 1¼") perfect for classroom demonstrations and field studies.
Precision Counting
Detects radiation from 1 CPM to 10,000 CPS with high accuracy for reliable, consistent monitoring.
Wide Measurement Range
Measures from 0.001 mR/hr to 1,000 mR/hr (Imperial) and 0.01 µSv/hr to 10 mSv/hr (Metric).
Proudly USA Assembled & Supported
Built with pride in the USA, backed by knowledgeable technical support.
Explore the details
Configure your counter
GCA-06W & additional options
Choose optional certification or a belt clip, then add your counter to the cart.
ANSI-STD N323A certification adds approximately two weeks to delivery.
Extend your setup
Accessories & software
Bench-Top Stand 06/03
$9.95
Geiger Graphing Software
$49.95
Requires a compatible USB/TTL cable.
Try the free version
Experiments With A Geiger Counter
Paperback book
$19.95
Book information & free offer
Geiger Counter USB/TTL Cable
$24.95
Pulse Counting Software
Free
View Free Software