Detech 401A Electron Multiplier Back Catalog number: 401A Availability: In the manufacturer's stock Price on request - + Recommended G7000-20444 Extractor Lens, 3mm, for 7000B QQQ 6 821,11 Kč 393031501 Electron Multiplier Assembly, 220GCMS 114 055,26 Kč G1958-60137 Nebulizer(needle SST316 replacement) kit 10 522,48 Kč