Detech 401A Electron Multiplier Back Catalog number: 401A Availability: In the manufacturer's stock Price on request - + Recommended G3870-20448 EXTRACTOR LENS, 6MM DIAMETER 253,40 € 5190-5104 QuickProbe Liner, UI, 4mm ID, Frit 57,95 € G3170-60172 5975C SST EI 350 Repeller Assembly 1 153,16 €