CE is self certified and it you look at the radion documentation CE only applies to their radio module, no safety certification. The two standards they quote are EMC related. If they attest to the Low Voltage Directive (LVD) 2014/35/EU that is more related to safety but they do not say that. We get CE certification all the time with our products, it is not the safety we are talking about with regard to grounding, wire size etc.
In the Radion G4 manual with CE you must declare what standards you did the self certification:
CE Declaration of Conformity The equipment complies with the RF exposure Requirement 1999/5/EEC, Council Reccomendation on the limitation of exposure of the general public to electromagnetic fields (0-300 GHz). This equipment meets the following conformance standards: EN 300 328, EN 301 489-17
Also:
What is a CE mark and is it equivalent to a UL Listing Mark?
A CE Marking is a European marking of conformity that indicates that a product complies with the requirements of the applicable European laws or directives. The European Community established the CE marking system to ensure free movement of products between member countries and to remove internal barriers to trade. The CE marking is a legally required marking in the European Union (EU) and applies to a variety of product categories. It is usually a manufacturer’s self-declaration that the product complies with European laws
and may not include assessment to safety requirements.
Because most products bearing the CE mark are not required to be third-party certified, are not subject to ongoing factory surveillance of production, and may not be compliant with applicable U.S. product safety standards, they are not considered to be Listed as defined in NFPA and ICC model codes and standards. For more information about the CE mark
click here