Easy to Use
Designed for professionals and amateurs alike, with a straightforward interface for quick, dependable results.
Professional radiation detection · Made in the USA
GCA-07 Digital Geiger Counter
Empowering classrooms with reliable radiation detection.
Fast, accurate, and easy to use. The GCA-07 provides dependable radiation measurements for professionals, educators, and everyday users. Its compact, portable design makes it convenient for classroom, laboratory, and field activities. Made in the USA with USA-based technical support.
Compact handheld design
Portable radiation detection
Built for hands-on science
Reliable measurements. Practical learning.
Explore the performance, handling, and support features of the GCA-07.
Portable & Convenient
Compact and lightweight for radiation detection in the classroom, laboratory, or field.
USA Quality & Support
American-made quality with USA-based technical support.
Certification Available
Optional ANSI-STD N323A certification is available for an additional $150. Allow approximately two additional weeks for delivery.
Explore the details
Configure your counter
GCA-07 & 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
$11.95
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