Detech 401A Electron Multiplier Back Catalog number: 401A Availability: In the manufacturer's stock Price on request - + Recommended G3170-20540 CI Lens Insulator 5 546,88 Kč G1960-20032 ESI Needle 6 117,12 Kč G7000-20444 Extractor Lens, 3mm, for 7000B QQQ 6 505,92 Kč