NEW SBM-20 SBM20 SBM 20 An STS-5 SI22G M4011 Geiger Muller Tube Counter Detector

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NOS and TESTED Geiger Muller Tube Counter<br>(from USSR military store)<br>SBM-20 / SBM20 / СБМ-20 (an. STS-5, SI22G)<br>Radiation detector (counter)<br>Description<br>Geiger Muller Tube Counter<br>SBM-20 / SBM20 / СБМ-20 (an. STS-5, SI22G)<br>for ionizing radiation detection.<br>Can detect<br>beta<br>and<br>gamma radiation<br>.<br>400 V<br>operating voltage.<br>105 mm<br>overall length.<br>Gold (brass) color.<br>Symmetric end caps.<br>Positive terminal is usually marked<br>‘+’<br>, but if not, it’s the end closest to the<br>"CBM-20"<br>marking.<br>Purpose of Use<br>Geiger Muller Tube Counters<br>SBM-20 / SBM20 / СБМ-20 (an. STS-5, SI22G)<br>are widely used for radiation detection:<br>Ionizing Radiation Detection<br>Dosimeters / Radiation Counters<br>Interesting and informative video about SBM-20<br>LND712 vs the SBM-20 - YouTube<br>Video will open in a new window<br>[isdntekvideo]<br>Specifications<br>General Specifications<br>Gas Filling<br>Ne + Br2 + Ar<br>Cathode Material<br>Stainless Steel, 50 mkm<br>Maximum Length (mm)<br>108<br>Effective Length (mm)<br>91.0<br>Maximum Diameter (mm)<br>11<br>Effective Diameter (mm)<br>10<br>Connector<br>Pin<br>Operating Temperature Range<br>0<br>C<br>-60 to +70<br>Electrical Specifications<br>Minimum Anode Resistor (meg ohm)<br>1.0<br>Recommended Anode Resistor (meg ohm)<br>5.1<br>Recommended Operating Voltage (volts)<br>400<br>Operating Voltage Range (volts)<br>350 - 475<br>Initial voltage (volts)<br>260 - 320<br>Plateau length (volts)<br>at least 100<br>Maximum Plateau Slope (%/100 volts)<br>10<br>Minimum Dead Time (at U=400V, micro sec)<br>190<br>Working range (mkR/s)<br>0.004 - 40<br>Working range (mR/h)<br>0.014 - 144<br>Gamma Sensitivity Ra<br>226<br>(cps/mR/hr)<br>29<br>Gamma Sensitivity Co<br>60<br>(cps/mR/hr)<br>22<br>Inherent counter background (cps)<br>1<br>Tube Capacitance (pf)<br>4.2<br>Life (pulses)<br>at least 2*10<br>10<br>Weight (grams)<br>10<br>Delivery Kit<br>1 piece Geiger Muller Tube Counter<br>SBM-20 / SBM20 / СБМ-20<br>Warranty<br>Defective items must be reported and returned to us within the warranty period (and in the original packaging, if possible). You must tell us what the defect is and give us your ebay id. we do not repair or replace items with an expired warranty. You agree to all of the above-listed policies upon bidding on and winning this auction!<br>The warranty excludes neglect (item has signs of mechanical damage, liquid penetration etc) or unauthorized repair. Warranty labels need to be intact. Avoid dirt accumulation on dosimeter. Clean with soft fry fabric. While use in rain use special case.<br>Buyer pays for returning the item for repair.<br>Payment<br>We accept payment via<br>PAYPAL and money transfer systems (e.g.WU).<br>Payment must be made within 3 days of auction closing.<br>Total amount due includes the final auction price plus Shipping.<br>Shipping will be determined based upon the SHIP TO address.<br>PLEASE NOTE!<br>Shipping does not include duties, local taxes or any other importation fees<br>Shipping<br>We ship to any country. This item will be shipped to you from Europe (Ukraine) via registered airmail (or groundmail) with tracking number and full insurance within 3 days (except for the weekends and holidays) after the payment is fully received. Shipping to confirmed PayPal address only. If you want your purchase to be shipped to other address, please, notify us via personal messages or in the message to the purch