Detech 401A Electron Multiplier Back Catalog number: 401A Availability: In the manufacturer's stock Price on request - + Recommended G3870-20530 Extraction Lens Insulator 683,85 € G3170-60172 5975C SST EI 350 Repeller Assembly 1 208,91 € 05971-20143 ION FOCUS-ONE PIECE 583,90 €