Detech 401A Electron Multiplier Back Catalog number: 401A Availability: In the manufacturer's stock Price on request - + Recommended G3870-20444 Extraction Lens, 3mm 283,61 € G2440-60200 Ceramic Channel Electron Multiplier AY 4 343,38 € G1958-60137 Nebulizer(needle SST316 replacement) kit 418,06 €