GQ GMC-500Plus Geiger Counter Nuclear Radiation Detector Monitor Dosimeter, White

Very good experience with the seller. Products just as described, no problems at all. Great costumer service, they wrote to me with an extra question about color, very respectful, helpful, excellent English. Fast delivery. Perfect transaction, thank you very much 😊

On est au delà du gadget pour survivaliste. Possibilité de faire des mesures correctes pour beta et gamma (les particules alpha telles celles émises par le radon demande des sondes très spécialisées et pas des tubes geiger). Bonne ergonomie, bonne autonomie. Les mesures effectuées sont conformes aux prévisions (je ne dispose pas de source calibrée pour affirmer leur justesse). Bon logiciel même s'il est dommage de devoir payer (un peu) pour la version pro, la plus complète. A noter que le fabricant donne sur son site le détail du protocole de communication ce qui est très rare hélas. L'installation des soft sous Linux, une vraie usine à gaz par contre sous Windows, enfantin (je n'ai pas de MAC). Hors mesures sur le terrain (minéralogie), ll est en service permanent chez moi et transmet ses mesures sur le web.

I’m very impressed with the GQ GMC-500+ Geiger Counter. It works exactly as described and measures radiation levels with excellent accuracy. Now I finally understand the real background radiation level around me, and it’s surprising how easy it is to use — just turn it on and it starts monitoring instantly. I especially like that I can compare my readings with radiation maps from other locations, where people use the same model. This gives a much clearer picture of what’s going on not only around my home but also in other regions. The device feels solid, the screen is bright, the data logging is very helpful, and the battery lasts a long time. If you want a reliable radiation detector that actually shows real numbers — this is the one. Highly recommended!

I like it, Specifically for the Battery is removable

If you want a peace of mind you can't go wrong with this Geiger counter. I am very satisfied with the results. Get yourself one. It's worth the price you pay for it. I recommend you get a small case with foam in it for storage when not in use and to protect it from getting damaged.