GQ GMC300Eplus Fulfill Digital Geiger Counter NULCEAR Radiation Detector Monitor Meter Dosimeter Beta Gamma X-ray Datalogger Recorder Real-time monitoring, private home use All purpose, wall charger

Face item appears to be well-made and accurate, it is within 00.01 to 00.02 of my secondary reader, and less a good time on a charge. Small enough to be discreetly placed in their home, measuring background radiation, ideal if you live near a nuclear plant or an industry that uses nuclear products in manufacture. To give you that extra little time right up in saving yours and your family’s lives. Easy to use, easy to set up, would recommend this product in your prep kit or for just piece of mind or curiosity of background radiation where you live.

Long battery life and measured background radiation matches expectation for my geographic area. The data storage capability is quite useful as well. I have not tested this device using calibrated beta, gamma and X-ray sources, but I suspect that the performance would be pretty good. Note that these types of detectors generally do not measure alpha or neutron radiation. I purchased this device for testing for residual radiation in building materials and antique plate glaze and I am very satisfied.

works as expected. you don't get A measurement at this price range of course, but this is not much different to the GMC500 plus really, it reads and graphs pretty much the same without useless features like wifi etc.

I dislike there is no app for the phone it have no Bluetooth No waterproof instructions a joke , NO ESTANDARD USB PORT. I LIKE a lot features in one device , battery life is very good even in negative degrees -5⁰ Tested, tube inside can be change but you have to know what are you doing , can be set in the wall it come measure guide For 79£ I can't ask for more Other device will charge you twice I forgot my favourite feature is power saving but if you put headphones you can hear they device working clicks Is comes Recomend yo buy more advance device to keep standby when this one detect too much radiation . Life expectancy for this devices is 2+ years in heavy use but as I said you can change de tube sensor soo this device can be use for much longer also put ptlrotection to waterproof it but only will measure gamma like that actually measures better and gamma no alpha but I'm not 100% sure they don't provide this info.

Got this at the right price to check whether any of the watches I’ll be working on have radium in the lume. The model has been updated since some of the reviews I read, it now has a USB-C socket for charging and connectivity. I did a quick check when I received the Geiger counter by waving it over a few watches and, sure enough, it could tell the difference between modern lume and that nasty radium stuff. It is quite configurable and just so you know - the GM tube is at the top of the unit, above the display, not to the right where the nuclear emblem is…

Good starter for adult only picks up beta and gamma radiation not alpha

The build quality is good and it works really well

Walked around my town for an hour and a half in the evening accumulating about 20 millisieverts; delighted to know I don't live in Fallout and will be in the know if Putin or Xi go full Strangelove on us.