Geiger Counter Nuclear Radiation Detector - FNIRSI Radiation Dosimeter with LCD Display, Portable Handheld Beta Gamma X-ray Rechargeable Radiation Monitor Meter, 5 Dosage Units Switched

This Geiger counter works nice it’s clean picked up small amounts of radiation within my house. Thank you Japan for the Fukushima plant still picking up radiation from it this Geiger counter picked it up handy to have. It’s worth the money.

Works well, time related records are displayed well and are useful. Would be great to be able to change time scale to a week or a month. I need to test this unit against a known calibrated source or another calibrated detector.

I liked it's smaller size and features.

I tried to find something mildly radioactive to test this with, but even a smoke detector failed to "move the needle," so to speak.Because of that, I'm giving this a cursory rating based on the packaging, instructions, and overall feel of the device.It has the feel of a well-made piece of personal electronics, with a sturdy plastic case, solid buttons that operate well, and a very appealing color LED display, and the pricing was appealing to me, along the lines of, "Might be nice to have this tool laying around some day."

Do I need a Geiger Counter? No. Is this very fun to play with? Yes.This unit is quite light and I like the fact that it is rechargeable instead of using disposable batteries. Even better that it uses USB-C for charging, as I already have plenty of those around. The display is nice and bright and the text is easy to read. The reading seems to be a few seconds behind so keep that in mind if you are moving around an area. Overall very impressed with this small Geiger Counter and I can't wait to scan my house guests suspiciously.