Certification Ready
ANSI-STD N323A certification is available from the manufacturer at additional cost. Certification confirms that your Geiger counter has passed ANSI-STD N323A calibration.
Professional radiation detection · Made in the USA
GCA-03W Digital Geiger Counter
Empowering classrooms with reliable radiation detection.
Fast, accurate, and easy to use. A handheld personal nuclear radiation detector for a broad spectrum of nuclear radiation, including low-energy background radiation. Assembled in the USA with USA technical support.
Compact handheld design
External wand probe
Built for hands-on science
Reliable measurements. Practical learning.
Explore the performance, handling, and support features of the GCA-03W.
Compact Handheld Design
5¾ inches long × 3½ inches wide × 1¼ inches high.
Counting Resolution & Range
1 count per minute (CPM) to 10,000 counts per second (CPS).
Radiation Resolution & Range
Imperial: 0.001 mR/hr resolution and 1,000 mR/hr range. Metric: 0.01 µSv/hr resolution and 10 mSv/hr range.
USA Assembly & Support
Assembled in the USA with USA technical support.
Explore the details
Configure your counter
GCA-03W & 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