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Educational Science & Technology
CONTACT US|Tel: 01525 373666
SmartQ Geiger Müller Sensor

SmartQ Geiger Müller Sensor

The Geiger Müller sensor is used to monitor alpha, beta, and gamma radiation. The sensor consists of the Geiger Müller adapter, a Geiger Müller counter and a steel rod for clamping into a suitable holding device.

How the GM Sensor Works

The Geiger Müller counter is a GM tube with built-in integral high tension power supply. It has a yellow LED power indicator and audible bleep for each radioactive pulse that is recorded.

The sensor becomes active and starts to count as soon as it receives power from the data logger. A button press will reset an open count to zero.

data harvest current sensors
data harvest current sensors
Practical Teaching

The SmartQ GM Sensor can be used to investigate a number of scientific experiments such as:

  • Background radiation
  • Locating radiation hot spots due to mineral deposits 
  • Increased radiation in enclosed spaces due to natural Radon 
  • Radioactive half-life decay curves
  • Activity of different radioactive sources 
  • Radioactive penetration through different materials 
  • Effect of distance from radioactive source
Warranty & Support

All our sensors are supplied with 5 years warranty and lifetime support.

Your Purchasing Options

For customers outside of the UK, please contact Data Harvest or an overseas distributor within your country.

Downloads & Resources

All available downloadable product manuals and firmware for the Geiger Muller Sensor

Product Manuals

Download Geiger Muller Sensor Manual | Version: 6


Ranges 3, Counts, Open Counts, Pulse Counts
0 to 500 counts per sec,
0 to 5,000 counts per 10 sec,
0 to 10,000 counts per min 
Open Counts 0 to 65,535 open count
Pulse Counts 0 to 100% pulse output

What's in the box

1x Geiger Müller Adaptor
1x Geiger Müller Sensor
1x Metal Support Rod

Other Information

Window specifications: Thickness: 1.5 to 2.0 mg/cm2.
Useful diameter: 9.14 mm.
Material: Mica
Gas filling: Neon, Argon, and Halogen
The GM tube’s window is made of a very thin sheet of mica, protected by a cap that is best left on except when measuring alpha radiation.
Excluding the Pulse output range, the fastest speed that data can be captured is 50 Hz (20 ms).
3.5 mm Jack plug connects the GM counter to the adaptor