Work with unsealed radio- active materials generates potential contamination of surfaces. Sensitive instruments providing early warnings of the presence of surface contamination help to prevent inadvertent transfer of radioactivity. Surface contaminations are measured as activity per unit area [Bq/cm²] for specified radio nuclides. These values are subject to regulatory limits. Surface contaminations are monitored using a variety of methods and instruments. Contamination monitoring is one of our core competences and we are offering the following products: