Russian Tiny Geiger Counter SBM-21 SBM-10 Lot of 10 NEW
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Russian Geiger Counter SBM-21 Lot of 10 New old stock. Technical characteristics: GM counter for hard betta and gamma radiation. Weight - 0.8 gramme Range of registering gamma radiation - 0.1 ... 1000 mkRoentgen/sec Gamma sensitivity Cs137 - 6.5...9.5 pulses/sec at P=10 mkRoentgen Working range - 350...475 Volts Start of counting - 260...320 Volt Length of counting plateau - at least 100 Volts Pulses value - at least 50 Volt Plateau slope - 0.15 %/Volt Dead time at 400 Volt power - 64 Roentgen/mksec Maximum counting - no more than 650 pulses/sec Background noise - no more than 0.2 pulses/sec ----------------------------------------------------------------------------- Payment Details PAYMENT IN USA and GERMANY I accept payments: PayPal, Moneybookers -------------------------------------------------------------------------------- Shipping Details Shipping from Ukraine via Airmail with tracking number Insurance is included to shipping cost We offer combined shipping discounts
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