It's small and has some handy measuring options. It's better than being without any knowledge of what could be happening around you. I have an old geiger counter that is so much more responsive than this one that I was very disappointed. I use some orange Fiestaware (uranium glazed!) and a Coleman lantern mantle (Thorium) that I use to test with and this Radex model is so slow to react that if you don't measure at a snails pace you might miss something entirely. It's also way overpriced IMO. The price nearly doubled after the Ukraine situation. I would not have purchased it for my son if I had the opportunity to revisit that choice. Delivery was fast.
Verified purchase: Yes | Condition: New
This works very well. Has good instructions. Simple to operate, changing the settings is not difficult but the default as it comes is mainly the way I will use it except I turn the alarm off so it beeps when detecting radiation (like the old Geiger counters). From other reviews I’ve seen the customer service is great. I put it on top of a smoke detector (they have a small amount of radioactive isotope inside, Americium) and it beeped much faster and went from a background of 0.11 micro sieverts per hour to 0.45 so it definitely works! There are great YouTube videos on this unit. Instructions have a good description of what is a dangerous versus safe level of radiation.
Verified purchase: Yes | Condition: New
Small, light unit that goes to work immediately. Lets you know right away if your specimen is radioactive. Also lets you know what the normal background radiation level is. Once you know what's normal, you can tell by the higher count that something has changed in the environment. Clear loud beeps when near a strong radioactive source. Fits in your pocket for easy travel. Great features for a reasonable price.
Verified purchase: No
Verified purchase: Yes | Condition: New
So far so good.
Verified purchase: Yes | Condition: New
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