Detech 401A Electron Multiplier Back Catalog number: 401A Availability: In the manufacturer's stock Price on request - + Recommended G3170-20126 Entrance Lens Assembly (HM) 5 054,40 Kč 610-PO10-01 50:1 to 1,000:1 Split Ratio, Post-Colum Flow split Price on request G7000-20444 Extractor Lens, 3mm, for 7000B QQQ 6 505,92 Kč