Gravity: Geiger Counter Module Ionizing Radiation Detector
118 units available with a short lead time.
This Gravity Geiger Counter Module detects ionising radiation — including nuclear radiation, X-rays, and cosmic rays — using a large M4011 Geiger-Müller tube. When ionising particles pass through the tube, the module outputs a digital pulse that can be counted by any microcontroller to calculate radiation intensity in CPM or µSv/h.
The Gravity interface connects directly to Arduino, Raspberry Pi, and other 3.3–5 V boards via a single digital pin. Beyond radiation detection, the random nature of ionising events also makes this module a true hardware random number generator.
Key Features
- M4011 Geiger Tube – Large, highly sensitive detection tube
- Digital Pulse Output – Pull-down signal on each ionisation event
- Gravity Interface – Simple 3-pin digital connection
- 3.3–5 V Compatible – Works with Arduino, Raspberry Pi, and more
- True Random Number Generator – Undetermined ionisation events provide genuine random entropy
Specifications
Geiger Counter Module:
- Supply Voltage: 3.3–5 V
- Output: Digital (pull-down pulse on detection)
- Driving Voltage: ~400 V (generated internally)
- Maximum Range: 1,200 µSv/h (theoretical)
- Module Size: 107 × 42 mm
M4011 Geiger Tube:
- Operating Voltage: 380–450 V
- Background Counts: ~25 CPM
- CPM Ratio: 153.8 CPM per µSv/h
- Tube Size: Ø10 × 88 mm
Package Contents
- 1× Gravity Geiger Counter Module (M4011 tube included)
- 1× Gravity 3-pin sensor cable
Resources
The Gravity: Geiger Counter Module Ionizing Radiation Detector appears in the following collections:
