Detech 401A Electron Multiplier Back Catalog number: 401A Availability: In the manufacturer's stock Price on request - + Recommended G3170-20430 CI ION Source Chamber 1 292,73 € G1099-80001 High energy dynode, 5973 series 3 613,89 € G3170-20530 Lens insulator,597X MSD 627,56 €