GammaGuard Legacy

76 reviews
Content rating
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About this app

ATTENTION: This app is being replaced by our new version of GammaGuard ( which has support for all of our devices and new features

ATTENTION: All camera detector functionality has been removed from GammaGuard. More information here:

GammaGuard allows a wireless connection to CT007 radiation detectors for enhanced functionality and an improved UI.

• Provides a large, easy to read display.
• Has the ability to interpret readings for non-technical users.
• Uses one consistent user interface across all CT007 series detectors, so that there is only one system to learn.
• Can automatically save data, including GPS coordinates, to a file and upload data to a central database, facilitating coordinated incident response.
• Alerts the user to elevated radiation levels, even when you are performing other tasks and GammaGuard is running in the background.
• Displays the radiation level when the CT007 detector is up to 40 m away from the smartphone.
• Changes background from green, to yellow, to red, to indicate low, elevated, and high levels of radiation.
• Can update the firmware on CT007 detectors, to ensure they are always up to date.

For a more detailed description of the application, please visit the developer website listed below.
Updated on
Sep 14, 2020

Data safety

Developers can show information here about how their app collects and uses your data. Learn more about data safety
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Ratings and reviews

75 reviews
Paul Cresswell
September 7, 2020
It's skunky and self-defeating to remove the onboard camera functionality. As a result alternative apps such as Rolf Dieter Klein's Radioactivity Detector or GammaPix will be downloaded instead.
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A Google user
January 23, 2019
my bad, I didnt see it needed special equipment and doesnt work with phone camera
1 person found this review helpful
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A Google user
November 19, 2018
They removed the use of your phone's camera. App's existence is a waste of electrons now.
1 person found this review helpful
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What's new

- Updated BASIC version