Radex RD1212 is a good instrument with SBM-20 tube. It is affordable and allows you to transfer data collections to a PC and save them in a .txt or .csv file. The menu is easy to understand with little effort, and the company's support is surprisingly very good. If you do your research and are careful you will find that the Radex RD1212 has the same accuracy range as many of the more expensive models and is sometimes as much as 5% more accurate than some of the more expensive models. WHY I CHOOSE THIS MODEL: The Radex RD1212 had good reviews from Revain and apparently two of them were engineers. I checked if they were looking at other products and found that they were "real" people and not just plants introduced by the manufacturer. When connecting to a PC, the batteries do not have to be removed first, as was the case with the competing model. The device allows you to collect and record multiple readings and then transfer the data to a PC. I was able to download and view the RadexRead software (available from quatrarad dot com) without making a purchase. I could see what other users were doing around the world. Radex RD1212 devices are made in Russia, not China or Korea. They're not among the low-quality devices that have been flooding the market lately. The price seemed good. The Radex 1212 has the same accuracy as instruments costing three times as much. Questions asked before support were answered clearly. The support person was knowledgeable and honest and more than answered any questions. Quatra has a pretty good website for the manufacturer. There is a lot of useful information about the product there. The price seemed good. Revain's warranty is one of the best on the web. AFTER PURCHASE: The support was still very good and helpful. The manual is a good quick start guide, but I think they should have a more detailed manual on the website, but that's a very minor issue. The site has a good video on how to upload information to the global app used by other Radex users and the email support is excellent. The device works in sub-zero temperatures. The screen or block will not be damaged if left overnight in 5 degree weather. The device allows recording of readings at the following intervals: 1 min, 5 min, 10 min, 30 min. 1 hour, 2 hours, 4 hours, 6 hours, 12 hours and 24 hours. You can record up to 180 readings and transfer the data to a PC. When using the RadexRead application, you can plot the readings on a map for other network users to see and/or save the readings to a text or CSV file on your computer - a great feature. Light background comes in handy in dark places or outdoors at night and turns off pretty quickly to save battery. It also turns on with the push of a button. OTHER CONSIDERATIONS: When buying a radiation detector, don't confuse it with a high frequency EMF meter or even a low frequency meter. This device is not designed to read data from microwave ovens, mobile phones, etc. You will not take readings from them. The device works as intended. You also need to understand that radiation levels fluctuate all the time. These fluctuations and even bursts can be caused by natural minerals in the environment, building materials, and even cosmic activity like solar flares or mountain rains that create sudden short bursts that are much larger than normal fluctuations. I compared my readings. with readings from other Radex RD1212 users and readings from around the world from the RadexRead app and from safecast.org. This corresponds to the expected result. I have tested my device extensively by taking multiple readings at 3 different locations, taking up to 180 readings in some tests. Each seat had its own area, and one seat (seat #3) exhibited what could be considered noticeably wider turns and spikes. However, I have not been able to reproduce these bursts or the same wide range in other areas. I couldn't reproduce any lower levels or areas of sites 1 and 2 in site 3 either. This shows that the device is stable and will only spike for good reason, known or unknown. After testing and getting over 2000 readings from 3 different locations I have concluded that the device is stable. I emailed my readings to a much more advanced user who has about 5 different radiation detection devices and he agreed with my conclusion. He fell on cement, parquet or asphalt. If someone shows me a video that shows something different, I'll change that line. This is also a bit of a problem as you can't even drop scientific instruments in the first place. If you use it in a high humidity environment such as B. on the beach, in snow or fog, it is advisable to put it in a zipper. Close the bag to protect it from moisture. I would recommend this for almost any device you buy. I've used the device with a zippered case in the snow and fog with no problem. Use a ziplock bag, not a gusseted bag. The device also has a small flash, which I thought was silly at first, but when I dropped my keys in a dark parking lot one night, I actually used the feature. can easily pay $800 or more for a unit no more accurate than this.
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