Radiation Alarm 1.5

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Publisher Description

Turn your Android device into real ionizing radiation detector!

It is NOT a fake! A camera built-in your smartphone/tablet is sensitive to harmful gamma radiation. The application is really easy to use, but you must strictly follow given instructions.
The application has three thresholds (states) of the levels of radiation:
--> There is no radiation. Radiation is not detected. you are safe
Application indicates that there is no radiation if it can't register any traces left by gamma quanta. This state also occurs in the beginning of measurement. Wait for a few minutes to be sure that you are safe.
--> Low radiation level is detected
Application detected a low radiation level - up to about 10-20 uSv/h (according to measurement carried out on SE Xperia Neo V and Lenovo IdeaPad). The level of radiation isn't dangerous but it's strongly recommended to continue carrying out the measurement for next a few minutes to be sure if there is no more serious problem. And you should think about the source of this radiation.
With some devices it is also possible to detect cosmic radiation during flight by airplane (on altitudes higher than 10 km).
--> Radiation hazard
You should run away. The threshold for this stage is about 100-150 uSv/h. Make sure that you didn't uncover your camera during all the measurement. Repeat the measurement and call the local authorities. It is really serious situation but don't panic - everything will be ok!

The application was calibrated using Cs-137 ionizing radiation source in the Institute of Nuclear Physics, Polish Academy of Sciences in Cracow, Poland.
Cs-137 is one of the most dangerous isotope contaminating environment during nuclear accidents (e.g. in nuclear power plants etc.).
How to use the app (the instruction is also shown to the user on the first run):
1st step:
Cover main camera in your device using e.g. a piece of black tape. You MUST cut off visible light completely!
2nd step:
Run the application, read the instruction again, scroll down and push "Calibrate" button. The app will ask you if you prefer fast or accurate calibration. Of course the second one is recommended. Remember! During the calibration your device must NOT be exposed to higher (than normal background) level of ionizing radiation!
3rd step:
Your device and application is ready to detect ionizing radiation. During the measurement your camera must be covered by a piece of black tape. But after measurement you can uncover it and take pictures normally.

WARNING! The authors of the application put as much effort as they could to make the application the best. But there is no guarantee that application will work properly, won't damage your device and will be able to detect ionizing radiation properly.

The application is available for free, but it will be very kind of you if you could send me the report of successful radiation measurement. All information will be very helpful to improve the application!

Radiation Alarm is a free software application from the System Maintenance subcategory, part of the System Utilities category. The app is currently available in English and it was last updated on 2013-10-15. The program can be installed on Android.

Radiation Alarm (version 1.5) is available for download from our website. Just click the green Download button above to start. Until now the program was downloaded 0 times. We already checked that the download link to be safe, however for your own protection we recommend that you scan the downloaded software with your antivirus.

Program Details


Publisher Rafał Kozik
Released Date 2013-10-15
Languages English


Category System Utilities
Subcategory System Maintenance

System requirements

Operating systems android

Download information

File size
Total downloads 0


License model Free
Price N/A

Version History

Here you can find the changelog of Radiation Alarm since it was posted on our website on 2017-01-01. The latest version is 1.5 and it was updated on soft112.com on 2018-03-24. See below the changes in each version:

version 1.5

posted on 2013-10-15

*higher sensitivity,*three state: no radiation, low level (from about 10 μGy/h), high radiation level

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Release Date: 2013-10-15
Publisher: Rafał Kozik
Operating System: android
Type: Free