PLEASE, READ CAREFULLY EVERYTHING. IT IS IMPORTANT.
About Item: SBM-20 RUSSIAN GEIGER MULLER DETECTOR.
A noise caused by pieces of glue can be heard when shaken. No effect on detector performance. Tested - 100% normal working.
Lenght: 108 mm.
Diameter: 10 mm.
Weight: 10 g.
ELECTRICAL SPECIFICATIONS
Parameters |
SBM-20 / SBM-20U |
Minimum Anode Resistor (meg ohm) |
1.0 |
Recommended Anode Resistor (meg ohm) |
5.1 |
Recommended Operating Voltage (volts) |
400 |
Operating Voltage Range (volts) |
350 - 475 |
Initial voltage (volts) |
260 - 320 |
Plateau length (volts) |
at least 100 |
Maximum Plateau Slope (%/100 volts) |
10 |
Minimum Dead Time (at U=400V, micro sec) |
190 |
Working range (mkR/s) |
0.004 - 40 |
Working range (mR/h) |
0.014 - 144 |
Gamma Sensitivity Ra226 (cps/mR/hr) |
29 |
Gamma Sensitivity Co60 (cps/mR/hr) |
22 |
Inherent counter background (cps) |
1 |
Tube Capacitance (pf) |
4.2 |
Life (pulses) |
at least 2*1010 |
Weight (grams) |
10 / 9 |
GENERAL SPECIFICATIONS
|
PLEASE, READ CAREFULLY!
SHIPPING METHODS:
1. Europe - Economy International Shipping - no tracking number.
If you wish faster delivery and tracking number, please select STANDARD International Shipping.
2. Worldwide - Standard International Shipping - with tracking number included in the cost of shipping.
3. Any order above $ 60 US - with tracking number included in the cost of shipping.
The ESTIMATED delivery time varies from 7 to 45 working days (9 weeks) to most of the countries.
Detailed info you can find in the table below.
Delivery time | |||||
% of shipments that arrive in the said delivery time | |||||
Country | working days (without holidays and weekends) | ||||
<15 | 15-24 | 25-34 | 35-45 | >45 | |
<3 weeks | 5 weeks | 7 weeks | 9 weeks | >9 weeks | |
Canada, United States | 5 % | 85 % | 7 % | 3 % | 0 % |
Africa, South America | 5 % | 20 % | 55 % | 20 % | 0 % |
Japan, South Korea | 10 % | 85 % | 5 % | 0 % | 0 % |
Taiwan, Thailand | 5 % | 45 % | 45 % | 5 % | 0 % |
China, India | 5 % | 40 % | 50 % | 5 % | 0 % |
Indonesia, New Zealand | 5 % | 40 % | 50 % | 5 % | 0 % |
Israel | 5 % | 65 % | 30 % | 0 % | 0 % |
Australia | 5 % | 55 % | 35 % | 5 % | 0 % |
Russia | 5 % | 50 % | 40 % | 5 % | 0 % |
Europe | 60 % | 35 % | 5 % | 0 % | 0 % |
Others, not entered shall, countries | 5 % | 20 % | 55 % | 20 % | 0 % |
Thanks And Good luck!