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.
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.