Description: The Type 5 Pocket Geiger Radiation Sensor from Radiation Watch is a highly sensitive radiation sensor designed for the embedded systems market. Capable of detecting Gamma and Beta radiation, this sensor has a simple pulsed output that can be used with any microcontroller. Radiation Watch has a handful of documents and example Arduino code to get you up and running. They have also written a Windows example program in C# (source included!) to output graphs to a computer using an Arduino as the reader.
These small Geiger sensors feature a measurement range of 0.05uSv/h to 10mSv/h at 0.01cpm to 300Kcpm with a required measurement time of two minutes. The Pocket Geiger has an onboard DC boost circuit, so the board can be supplied with a friendly 3V to 9V. Using only 30mW (10mA @ 3V), it is very low power. Additionally, the counter comes with an optional enclosure and 3.5mm cable that allow you to connect the counter to some mobile phones (may not be compatible with phones sold in the EU).
Note: This product is for educational purposes and should not be directly relied upon for determinations regarding one’s health or safety.
Dimensions: 58 x 26 x 11mm
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The Sparkfun write up says the pocket geiger can be connected to mobile phones and used with a downloaded app. It didn’t work with my Samsung Galaxy S7 Edge.
Spark fun Tech Support confirmed it didn’t work with their Galaxy S5 or iPhone 6, and suggested that I could build a small interface and power supply circuit, which they said worked great on the iPhone 6, and sort of worked for their Galaxy S5. I explained that I wasn’t looking for a new project, just a sensor that worked. I returned it.
Yeah unfortunately it only works with some phones. We’re unable to confirm its compatibility with all types of phones.