Smart Geiger Nuclear Radiation Detector Counter For iOS iPhone Android Phone

Ludicrously insensitive. Not surprisingly for such a small device it doesn't pick up many counts. I have compared its performance with a proper Geiger Muller device and for normal safe levels of radiation it would take days to give statistically significant readings. If this device starts giving reasonable count rates then I'd advise you to get well away from what you are measuring!

Doesn't really work. Would like to return

This is a good idea ,having a house hold Geiger counter.testing various foods and items. I ordered one and yes it did pick up radiation from a banana -potassium in banana's is rad active called k20.after one test it froze a lot,not even picking up radiation from smoke detector .waste of money,sending it back.

Had radioactive iodine treatment. This device gave me peace of mind before returning to work. Knowing my levels were safe for everyone around me was a huge worry. This reassured me greatly.

Very insensitive. My 1950s geiger counter shows a background count of 10/20 counts per minute. This shows nothing! I have several slightly radioactive items in my workshop, all of which register on the old device, but this doesn't detect them at all.

So insensitive as to be virtually useless. I also bought a GQ GMC-300E-Plus at the same time. Although it cost £50 more it is far superior.

Not workin on asus phone

Excellent item work's well with the old WW2 pocket watches.