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Geiger Counter - Glass Top - Version 2.5 #9

$500.00

Hand Made Geiger Counter

This is a real Geiger counter, artistically hand made by Chuck Pound in June 2025. This radiation detector uses a Geiger Müller tube (Soviet surplus SBM-20) to detect Beta particles, Gamma rays, and X-rays. It will not detect Alpha radiation, that requires a special kind of Geiger Müller tube. The box is made from copper clad FR-4 printed circuit board (copper clad fiberglass). The top is made of glass so that you can see all of the electronics inside. This is not a portable Geiger counter, but makes a nice looking copper and glass desktop conversion piece. This is the 9th Geiger counter in this series, the others were sold in our shop and online.


This Geiger counter can be used for testing Vaseline glass, radioactive fiestaware, radium watches (please be careful), dryer lint, and other similar items. DO NOT RELY ON THIS DEVICE FOR HEALTH OR SAFETY REASONS. FOR EDUCATION AND ENTERTAINMENT ONLY!

Calibration of this device is only relative, more lights only mean more radiation detected. They do not necessarily indicate the danger of said radioactivity, but they do look pretty! Instructions will be provided with your purchase. There are some accessories available also, please contact us for details.

You can connect the Geiger counter to the microphone input of an Android device to get more accurate readings using "RadMeter" from Google play. A cable can be provided on request (not tested with USB audio adapter). The Geiger counter can also be connected to a Windows computer running special software. Using a computer you can keep records, upload data to your own web page, or to radmon.org to share your background radiation readings with other people. Click the link to see these readings, my Geiger Counter is on the map in southwest Wisconsin. The software is available for free on radmon.org, though I would suggest some donation to be offered if the software does what you need. There are other Windows software available, but they have not been tested. A special cable makes it easier to connect to a Windows computer, available at http://www.gqelectronicsllc.com/store/index.php?route=product/product&path=25_68&product_id=161 or I can send one to you with the unit for an additional cost.

Video of similar Geiger counter

  • Returns only if unit is not as described. 
  • Returns only with seller's permission, you must contact us first!
  • IF a return on any working device is allowed, there will be a $50 return fee, buyer pays shipping.
  • Unit will be very well packed for shipping. 
  • Ask for shipping insurance to be added to your invoice, before you pay, if you feel shipping insurance is needed. We will not be responsible for loss in the mail or mis-delivery.
  • Any questions, please ask! (Contact Us)

I will repair the unit for free (you pay to ship it to me) if it fails within 65 days of shipping date, as long as the unit has not been physically damaged, modified, or altered in any way. That is, if the electronics fail for no apparent reason, I'll fix it. If you drop it, open the box and damage the electronics, or something like that, I may be able to fix it for a fee. Free repair does not include the Geiger-Muller tube. If the Geiger-Muller tube fails a fee will apply and repair may take a month or longer, to obtain a replacement. You must contact us before returning the Geiger counter. Condition decision will be made only by seller.