video：

https://youtu.be/ZOgOO5NST3E

DIY Geiger Counter Kit ，Geiger Miller Tube Nuclear Radiation Detector

Model:GeigerCounter_v0.8

Shipping list:

1) all parts for GeigerCounter V0.8

2) Power cable

3) Acrylic dust cover

4) copper pillar

Specifications:
Mateial: printed circuit board
Geiger Tube Model: M4011
Type-C interface power supplys: 5V1A
Power consumption current: 20mA
Item size: 92 * 61mm / 3.6 * 2.4in
Item weight: about 40g / 1.4ounce
Package size: 150 * 100 * 40mm / 5.9 * 3.9 * 1.6in
Package weight: 60g / 2.1ounce

Tube M4011 Specification:
Diameter: Φ10±0.5mm
Total length: 90±2mm
Starting voltage: <350V
Recommended working voltage: 380V
Minimum ping-length: 80V
Maximum ping-slope: 10%/80V
Extreme working voltage: 550V
Maximum background count rate: 25 times / min
Lifetimes: >1 × 109 pulses
Detection: X β γ ray

Package list:
1 *unssembled geiger counter Kits V0.8(Black or Blue PCB)
1 * USB Cable