SI-25G (СИ-25Г) Geiger-muller counter detector tube is designed to registered β-beta and γ-gamma rays. Perfect for a DIY projects.

Working range of dose power: 200 R/h;

Working current: max 0,03 mA;

Plateau Length/Inclination: 0.25 %/ V;

Working Voltage, V: 382 ... 398;

Maximum registering range: 1000 Roentgen/hour;

Length: 60 mm;

Diameter: 10 mm;

Weight: 15 gr.