DFRobot Gravity - Geiger Counter Module Ionizing Radiation Detector - DFRobot SEN0463

Ionizing radiation is an invisible and intangible enemy that exists not only in the reactors of nuclear power plants. In fact, we are constantly bombarded with radiation from the environment and space around us, but our body is able to resist natural radiation. With the use of a Geiger counter, it is possible to detect ionizing radiation in the surrounding environment. The DFRobot module from the Gravity series is based on a Geiger M4011 meter lamp , which supports voltages from 380 V to 450 V, measures the background of approx. 25 CPM with a coefficient of 153.8 CPM / (μSv / h) . The module is supplied with the voltage from 3.3 V to 5 V. The maximum measuring range is up to 1200 μSv / h (theoretically). There is a digital signal at the output, it goes low when a pulse is detected.

Geiger counter helps to detect ionizing radiation such as nuclear, X-ray, cosmic radiation, etc. But it cannot detect electromagnetic radiation such as microwave oven, cell phone, WiFi, induction cooker radiation. Moreover, the Geiger counter is a good random number generator , and the indefinite collisions of high energy ionized particles can provide random entropy, in order to obtain a true random number, not a constant random sequence based on the random number algorithm.

• Geiger counter:
  • Supply voltage: from 3.3 V to 5 V
  • Signal output: signal output, goes low when detecting the pulse
  • Forward voltage: approx. 400 V
  • Maximum range: 1200 μSv / h (theoretical)
  • Dimensions: 107 x 42 mm
• Geiger counter lamp M4011:
  • Working voltage: 380V to 450V
  • Background measurement: approx. 25 CPM
  • CPM ratio: 153.8 CPM / (μSv / h)
  • Dimensions: Φ10 x 88 mm

• DFRobot Gravity - Geiger counter, ionizing radiation sensor - 1 pc.
• Cable with 3-pin Gravity connector - 1 pc.

• Manufacturer's website: DFRobot SEN0463
• User Guide