ガイガーミュラー管　SI-3BGです。

ガイガーカウンター自作に！

Working range of Dose Power 300R/h

Sensitivity to Gamma Radiation 188-235 Pulses/s/R/h

Working Current 0.015-0.02mA

Plateau Length/Inclination 80V/0.25%/V

Working Voltage 380-460V

Working Current 0.015-0.02mA

Maximum registering range 300 Roentgen/hour

Length 55mm

Diameter 10mm