Smart Geiger Counter Radiacode-102 with Free Mobile App. Nuclear Radiation Detector

When I first received this Geiger counter I was very dismayed. The screen on the actual item tells you very little information and seemed confusing. And then when I started working with the app on the phone and testing it, this old Engineer started to feel something on her face that was unusual - it was a genuine smile of joy (it also made me talk about myself in the third person, but I digress). This item does so much and has so many modern features that I just keep finding new things to do with it. I really love it's GPS connectivity to the phone, I really love the fact that when I dropped it in a 1 acre field I was able to locate it and to have it sound an alert (the alert was soft, but it allowed me to find it when I had narrowed it down to a 5 foot area and somehow still could not find it). The ability to track radiation as you drive around is both cool and concerning, I have to wonder why one warehouse in town is sending out 200 counts per minute from approximately 200 feet away. But that's someone else's problem, I'm playing with the Geiger counter. At first I'd bemoaned the fact that does not detect alpha like my GCM 600+. Well, alpha is difficult to detect accurately I mean yes I use both counters, but this one is my go-to now. I'm very impressed by the fact it can use the energy spectrum to identify the most likely radioactive isotopes. I said it on top of a 10 pound collection of thoriated welding rods, and within a couple minutes he told me very clearly that it was sitting on top of thorium. The same for potassium, uranium, radium (identified by daughters), promethium, iodine, technetium, iridium, americium, lanthanum... basically everything that I had that was radioactive. It was not able to identify my tritium although it did pick up the radio activity, I'm guessing the bremsstrahlung x-rays? It's a small size makes it simple to throw in my purse and carrying with me, and the very long battery life and quick charging means it goes for days constantly without a charge. This was useful when I went to the dentist office and the dentist was so intrigued we ran his x-ray machine multiple times with me standing at different locations nearby. I was able to show him that the location they typically stand when they take x-rays was getting slight amounts of radiation, so they moved the controls back. Really there are no negatives at all regarding this Geiger counter, except that I wish the little chime plays when it is lost could be made louder so it'd be easier to find. So it receives a 99/100, or 5 stars. I know there is a new version of this counter out, but I haven't been sold on the improvements with it to justify buying that as well. And I think that testifies even more to how good this item is, it really does so much I just don't need anything else... (except alpha...what about a separate mini alpha pancake detector that can connect to this one via bluetooth? Oh, and maybe you guys can be the first to somehow bring out a reliable neutron detector below $1000?) hey, one can wish.

This is an interesting device. I've had a bit of time to tinker with it and have taken it out in the field. It's not a geiger counter. A geiger counter uses a geiger-mueller tube. A typical thin-walled geiger tube can only really register beta and pick up that there is radiation present, not its energy. It's basically numbers of clicks of ionizing radiation without being able to tell you anything about it. This is a scintillator that mostly picks up gamma and tracks voltage of counts in kev. It tracks these counts in spectra, spectrograms over time, and location. It's not quite a lab-grade device, but it puts this sort of monitoring and tracking into an affordable device. It's the kind of device you can carry with you and track radiation levels and doses around your location. You can put it next to an emitter, take a spectrum and identify the type of emitter. If you have an alpha or beta source, like uranium or thorium, it doesn't necessarily read it directly, but records the gamma emissions of decay chain products to identify the source. It's very sensitive to these types of sources in a way that a cheaper geiger tube device usually isn't. I think that the intended "killer ap" would be using it to monitor food sources down wind of Chernobyl. It's a European product in that way. That's not as much of a concern for me. For me, it can be a bit of a toy where I can take spectra of common emitters, like uranium glass, vintage dishes, lantern mantles. I've figured out that my downtown areas is slightly more radioactive than where I live. However, it's not a toy. It's a pretty serious device. There's a feature in the app that lets you identify emitter types through the differing peaks on a spectrum. You can take a baseline background reading and subtract it from your spectra to really make the source type more clear. It really does do a lot for the money. I use it as a safety device when I replace smoke detectors for people. I can check them for radiation emitters before disposing of them so i don't expose myself and others. As well, I run a desert education group and it helps in identifying minerals in the field. I found out one of my camera lenses is a beta emitter (thorium glass) which doesn't change much, but I'm happy that I know not to carry it in my vest pocket for 12 hours a day. My heads up is that the Android app is much more mature than the iOS app. The iPhone app is missing a lot of features, but it seems like they are updating about once a month. As of February 2024, the tracks feature works and the radiation level and dose rate features are working. You can take spectra but can't save them yet. I hope this gets fixed quickly, since this is maybe the best feature for me. The android app has pretty modest requirements, so I borrowed an old Android phone to save spectra and do background subtraction until these features are added. I don't think this is a deal killer. Also, the Android app has some odd English locutions so it might take some time to figure out what these features are, and you might need to refer to the documentation a few times before getting comfortable. So far, the iOS app is much more intuitive, though it is a work in progress.

The Radiacode 102 stands as a remarkable achievement in engineering, showcasing state-of-the-art electronics and software clearly designed by a small team of passionate experts. Their dedication to creating the best possible product within budget constraints is evident, as is their enthusiasm, reflected in their active engagement with users on forums like Geigerzählerforum. This advanced yet user-friendly device revolutionizes the consumer market for radiation detection, making gamma spectroscopy accessible to a broad audience, including young physics enthusiasts. Its combination of affordability, performance, portability, and ease of use opens up fascinating opportunities to explore radioactivity using common sources such as thoriated gas lamp mantles, thoriated welding rods, uranium glass, and radioactive minerals like thorite and uraninite. The Radiacode 102 serves practical purposes too, quickly alerting users to increased gamma radiation levels during potential nuclear incidents, and capable of measuring weak radioactive contamination in environmental samples, though this requires extended measurement periods and lead shielding. As a scintillator detector, it not only measures radioactive radiation with high sensitivity but also identifies its origin, boasting approximately 7 times more sensitivity for gamma radiation than the Mazur PRM 9000 pancake Geiger counter and 20 times more than the GammaScout. However, it's less sensitive than Geiger counters for beta and especially alpha radiation detection. The device comes with versatile software options, including mobile apps for Android and iPhone, a Windows application (currently limited to USB connectivity), and compatibility with third-party software like BecqMoni for easy Bluetooth connectivity. It can also function independently, storing data in internal memory. In terms of performance, my unit achieves 9.8% resolution for Cs-137, sufficient for isotope identification, though it can't match the sensitivity and resolution of larger, more expensive scintillators. For highly sensitive measurements, such as detecting Cs-137 in food, I employ a NaI(Tl) detector with 50 times larger crystal from GammaSpectacular and a lead shield to suppress the background radiation. Overall, the Radiacode 102 represents a significant advancement in consumer-grade radiation detection technology, proving invaluable for both amateur enthusiasts and professionals in the field of radiation detection and analysis. I attach some spectra measured with the Radiacode-102 and the Android app: Radium 226, Thorium 232, Lutetium 176, Potassium 40, Cesium 137, Cobalt 60, Americium 241 and the beta emitter Strontium 90.

Muy interesante como gadjet científico. No tengo idea de como funciona el modo espectrograma.

This unit is the one to buy if you are a "Cry Once" type of shopper. You will not need to buy the cheaper/simpler ones to finally realize that this is the one for 99% of your nuclear exploring. The Android app is spectacular and feature packed. The rechargeable battery life is excellent ( over 180 hours ). It is one of my everyday carry items which makes seeing my daily exposure statistics simple and very cool. i am not an Apple guy, but I hear that the iphone app is getting close to release. The manufacturer is exemplary in support and the quality of the device is excellent. Ordering and shipping was painless and very fast. From Cyprus to my hands in 4 days!

Excellent. Instruction videos very good.

Following a minor issue with the item, the seller demonstrated exemplary commitment to resolving it with the level of professionalism and rigor one expects from a product of such inherent quality. The replacement unit was delivered in pristine condition, and the reverse logistics were handled with precision—using reusable packaging, clear documentation, and timely coordination. Communication remained consistently courteous, efficient, and solution-driven throughout. This experience reflects a supplier with operational maturity, technical accountability, and a genuine focus on customer assurance. Highly recommended for those who value excellence not only in instrumentation, but in the integrity of the service behind it.