SBM-20 Geiger Muller Tube Nuclear Radiation Sensor
Military Russian Geiger Counter Tube SBM-20 for Radiation Detector NOS 1Pcs
Beta and gamma detection tube, tested sample
Russian military NOS Geiger Tube SBM20 for ionizing radiation detection. Can detect beta and gamma ionizing radiation. Full analog of STS-5. The tube has good sensitivity for natural background. SBM-20 is one of the best, cheap and robust GM tubes you can find in the market.
Working Voltage: 380V-480V
Dimensions of the tube are 108mm app. x 11mm app.