J305 Glassy Geiger Muller Tube Nuclear Radiation Sensor
1pcs New Geiger Tube Sensor. Can detect beta and gamma ionizing radiation. Analog of M4011 GM tube. The tube has good sensitivity for natural background. It's recommended to cover the tube againts the light to reduce photoelectric effect caused by ambient / sun light.
Working voltage: 380V-450V
Length: 107mm +/- 3mm
Diameter: 10mm +/- 0.5mm
CPM Gamma Conversion Factor: ~0.0081