Detech 401A Electron Multiplier Back Catalog number: 401A Availability: In the manufacturer's stock Price on request - + Recommended G3170-20126 Entrance Lens Assembly (HM) 4 970,42 Kč G7005-60170 RIS Probe Maintenance Kit 24 754,64 Kč G3870-20449 Extraction Lens, 9mm 6 237,39 Kč