Berthold has the most sensitive and stable detectors on the market, a simple detector replacement allows users to extend the life of their existing sources by years, while improving measurement reliability for all density and level applications. Berthold detectors can be retrofitted on existing measurements where the source has become too weak to work with the current detector. With thousands of systems installed around the world, we have the products, knowledge, and experience to solve your measurement challenge, regardless of if it is a new application or a retrofit with an existing source.

Customer benefit

  • Extend the life of existing but aged sources 
  • Managing overall site source activity
  • Improving measurement stability and reliability
  • Mitigation plan in place well before your measurement quality degrades


  • Twice the sensitivity of the competition
  • Twice the source life
  • Twice the resolution
  • Best reliability and stability
  • Reduced maintenance costs
  • Easy installation on any brand of source holder
  • One-time calibration required
  • Local support and inventory


Detector retrofit program Service brochure

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