Last updated May 26th, 2026:

All variants of Geiger Counter kits are currently in stock. Bundled kits that include a case and SBM-20 Geiger tube are also available from Amazon.com.

For fastest shipping of Geiger Counter kits, please order a boxed kit from Amazon (link). I’m also happy to ship other configurations here (it just takes a few extra days).

HV Rescue Shield kits are out of stock on my site. Bare PCBs are still in stock. Rescue Shield kits are still on sale at Amazon. There are only a couple kits left on Amazon, and I do not currently have another batch planned.  If you want one of these kits make sure to order immediately!

I’m now selling SBM-20 Geiger Tubes on Amazon. They come in a nice protective plastic case with end caps that is guaranteed not to roll off the table. There is also a brief datasheet inside. These really nice tubes are becoming difficult to find and available in a limited quantity.

I typically ship orders within 5 business days, unless otherwise stated here. If you need kits fast, please consider ordering from one of my distributors.