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Ludlum 3 & 44-7 Survey Meter Radiation Detector Geiger Counter A,B,G,X, US $660 – Picture 0
Ludlum 3 & 44-7 Survey Meter Radiation Detector Geiger Counter A,B,G,X, US $660 – Picture 0

Ludlum 3 & 44-7 Survey Meter Radiation Detector Geiger Counter A,b,g,x

US $660

  • Tucson, Arizona, United States
  • Jun 13th
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Super clean Ludlum model 3 with 44-7 Alpha, Beta, Gamma, X-ray thin mica end window probe right angle C to BNC adaptor and coil cord. Model 3 survey meter 0-400,000 CPM or 0-200 mR/hr in four decades with battery test, fast / slow response switch, audio on / off switch, and reset button. The 44-7 thin mica end window probe is sensitive to ALPHA, BETA, GAMMA, X-RAY, and BREMSSTRAHLUNG X-RAYS. NOTE the probe 44-7 and mR/hr dial match dial 202-330 is for use with the 44-7 probe only and would be way off reading with another probe type such as a pancake probe which requires a different dial for accurate mR/hr readout notice that the probe is 2,100 CPM per mR/hr at 1 mR/hr 2,100 CPM is aligned with the CPM scale. You can use about any probe you like but for accurate mR/hr readout the dial should be changed or else just use CPM and convert as with a pancake 3,300 CPM equal 1 mR/hr other dials can be ordered from Ludlum and are easy to change. This instrument and probe have been both pulse count calibrated and probe and instrument together with Cs 137 and are a perfect match. See Ludlums web site for more details at this link http://www.ludlums.com/ Includes right angle C to BNC adaptor, coil cord that fits both MHV and BNC connectors ( model 3 has a C female and 44-7 probe is BNC ) two new size D alkaline batteries, small test source if wanted ( the test source will be shipped if not specified ) Ludlum model 3, and 44-7 probe. TEST SOURCE AND SIGN SEEN IN PHOTOGRAPHS ARE NOT INCLUDED.

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