Detech 401A Electron Multiplier Back Catalog number: 401A Availability: In the manufacturer's stock Price on request - + Recommended G3870-20444 Extraction Lens, 3mm 7 138,37 Kč G1960-20032 ESI Needle 6 424,53 Kč PF3607510N5 Self-pack PicoFrit Columns, 360µm/75µm, pk/5 Price on request