Malvern Panalytical has introduced Epsilon 4, a benchtop XRF spectrometer developed from the Epsilon 3 series. The Epsilon 4 can be placed next to the production line, and most applications can be operated at ambient conditions, reducing costs for helium or vacuum maintenance. The low-drift metal–ceramic x-ray tube, designed and manufactured by Malvern Panalytical, can be used for years without re-calibration and the instrument can automatically process sample batches without the need for operator attention. Epsilon 4 is available in a 10-Watt version for elemental analysis (F–Am) in areas from R&D to process control. For higher sample throughput or extended light-element capabilities and in more challenging environments a 15-Watt version is available, which can analyse carbon, nitrogen and oxygen.