1pc. SI1G Ci-1G  Geiger Counter Tube Beta Gamma 

 NEW (not used),  old stock. Tested
For sale is lot of 1 new Geiger SI1G


Technical Characteristics:


Working Voltage        360-440V
Start of count Voltage 280-320V
Plateau Inclination  0.125%/V
Background              25 pulses per minute 

Dimensions:
diameter - 15mm;
length - 80mm.
Weight - 15g. 
Working Temperature Range -50 +65 С

will be well packed and shipped by air mail with tracking number