Classroom-Ready Performance
- Precise, vivid demonstrations of nuclear physics concepts.
- Hands-on measurements encourage active learning.
Professional radiation detection · Made in the USA
GCA-07W Digital Geiger Counter
Precision radiation detection for laboratories, classrooms, and field studies.
Equip your science classes, laboratories, and field trips with the GCA-07W Geiger Counter—trusted by educators, university professors, and serious hobbyists.
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-07W.
Laboratory-Grade Accuracy
- NIST-calibrated for immediate, accurate results.
- Detects Alpha, Beta, X-ray, and Gamma radiation.
Rugged & Student-Friendly
- Durable casing and robust toggle switches.
- Compact and ergonomic for easy handling.
Dedicated Academic Support
- Volume discounts, academic licensing.
- Priority USA-based customer service.
Explore the details
Configure your counter
GCA-07W & 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
Includes compatible USB/TTL cable.
Try the free version
Experiments With A Geiger Counter
Paperback book
$19.95
Free e-Book offer
Pulse Counting Software
Free
View Free Software