Who bought an acceptable Geiger counter on Aliexpress?

Question

I am interested to own a Geiger counter since I have been to Chernobyl 10 years ago. I know it's 99% a gimmick. Anyway, some years ago the detector of ionising radiation + Gamma Spectrometer from RadiaScan was featured on HN, and I have been having an eye on it since then. The price is still a little too high for me. Therefore I went to Aliexpress today and was surprised to find a plethora of Geiger Counters. Now, has anyone tried them with a proper test setup? I would assume that there are many scammers making a quick buck with the current fear of nuclear war. Or did they just start to copy the technology of Radiascan?

jansan · Accepted Answer

I puchased a cheap Geiger counter on amazon for about 70€ a while ago. While I would like to know if it works well, I have no idea how to test it. When switched on, there a beeps from time to time and a value in MicroSievert is displayed. But how should I know if it is measuring correctly?
I own a small Tritium capsule, which is a beta radiator, but that does not seem to emit any radiation according to my Geiger counter. Also, I puchased two glas pearls which contain a little bit of uraniumoxide, but that does not give any results, either.
s you can see, unfortunately I cannot tell you if my Geiger counter is acceptable.