For manufacturers of radio-enabled products, entering the European market requires more than a well-designed device and a successful production process. Products that fall under the scope of the Radio Equipment Directive must meet specific technical and regulatory requirements before they can be placed on the EU market.
This is where RED compliance becomes essential.
RED compliance refers to meeting the applicable requirements of the European Union’s Radio Equipment Directive 2014/53/EU. The directive applies to a wide range of products that intentionally transmit or receive radio waves, including wireless devices, IoT products, smart home equipment, industrial systems, communication devices and connected electronics.
Because radio technology is now built into so many products, RED compliance has become a central part of product development and market access for manufacturers targeting Europe.
Is RED Compliance?
The Radio Equipment Directive establishes essential requirements that radio equipment must meet in order to be legally marketed in the European Union.
These requirements cover several major areas, including health and safety, electromagnetic compatibility and efficient use of the radio spectrum. In addition, cybersecurity requirements have become increasingly important for certain categories of connected radio equipment.
RED compliance therefore involves more than a single test. It is a structured process that includes identifying the applicable requirements, selecting the correct standards, performing the necessary laboratory testing, preparing technical documentation and completing the conformity assessment process.
Once the relevant requirements are met, the manufacturer can proceed with the CE marking process, subject to the applicable conformity route.
Which Products May Require RED Compliance?
RED applies to products that use radio communication technologies.
This can include devices using Wi-Fi, Bluetooth, cellular communication, RFID, Zigbee, NFC and other wireless technologies.
Typical examples include smart home devices, connected appliances, wireless sensors, industrial controllers, wearable electronics, telecommunications equipment, security devices and IoT products.
A product may be subject to RED even if radio communication is only one part of its functionality. For example, an appliance that includes a Bluetooth or Wi-Fi module may still fall within the scope of the directive.
For this reason, manufacturers should assess RED applicability early in the development process rather than waiting until the product is ready for launch.
The Main Technical Areas of RED Compliance
One of the core elements of RED compliance is electrical safety and protection of users.
The product must be designed so that it does not present unacceptable risks related to electrical shock, overheating, fire or other safety hazards.
Another major area is electromagnetic compatibility, commonly referred to as EMC. The device must not generate excessive electromagnetic interference, and it must be capable of operating correctly in the presence of expected electromagnetic disturbances.
Radio performance is also a central requirement. The equipment must use the radio spectrum efficiently and avoid causing harmful interference to other devices or communication systems.
Depending on the type of product, additional requirements may also apply, including accessibility, emergency services, fraud prevention, privacy and cybersecurity.
RED Compliance and Cybersecurity
Cybersecurity has become a much more important part of RED compliance in recent years.
Connected radio devices may be required to address risks related to network protection, personal data and fraud prevention. These requirements are particularly relevant for IoT products and devices that connect to the internet or process sensitive information.
Manufacturers may need to consider issues such as secure authentication, protection against unauthorized access, secure software updates, encryption, vulnerability management and protection of personal data.
For many companies, this means that cybersecurity can no longer be treated as a separate technical topic. It must be integrated into the overall product compliance strategy.
The Role of Harmonized Standards
Harmonized standards play an important role in demonstrating RED compliance.
When a product is tested against applicable harmonized standards, manufacturers may benefit from a presumption of conformity with the corresponding essential requirements of the directive.
The exact standards depend on the product and the technologies it uses. A wireless device may require a combination of standards covering radio performance, EMC, safety and cybersecurity.
Selecting the correct standards is therefore a critical first step.
Using an outdated or inappropriate standard can lead to additional testing, documentation problems or delays in the conformity assessment process.
Why Testing Should Start Early
One of the most common mistakes is to treat RED compliance as a final step after product development has already been completed.
In practice, regulatory requirements can affect antenna design, PCB layout, shielding, power supplies, communication modules, software architecture and component selection.
If a compliance issue is discovered late in the process, the manufacturer may need to redesign the product, repeat laboratory testing or delay production.
Early testing can help identify problems while changes are still relatively easy to implement.
Pre-compliance testing can also be useful before formal testing begins. It allows engineers to evaluate likely problem areas and reduce the risk of failure during the final compliance process.
Technical Documentation and RED Compliance
Testing alone is not enough.
Manufacturers must also prepare technical documentation that demonstrates how the product complies with the applicable RED requirements.
This documentation may include product descriptions, design drawings, circuit diagrams, risk assessments, test reports, software information, component details and a list of the standards used.
The technical file should accurately represent the product version that is being placed on the market.
If the product changes after testing, manufacturers should evaluate whether the changes affect compliance and whether additional testing is required.
When Is a Notified Body Required?
In some cases, manufacturers may be able to complete the conformity assessment process without direct involvement from a Notified Body.
In other situations, a Notified Body may be required, particularly when the applicable harmonized standards do not fully cover the relevant essential requirements or when the selected conformity assessment route requires third-party involvement.
The need for a Notified Body depends on the product, the standards used and the specific regulatory situation.
This is another reason why it is important to define the compliance strategy before testing begins.
Common RED Compliance Challenges
Manufacturers often encounter difficulties when products combine several technologies.
For example, a connected industrial device may include Wi-Fi, Bluetooth, cellular communication, a power supply and cloud connectivity. Each of these elements can introduce different compliance considerations.
Another challenge is product variation. A product family may use different radio modules, antennas, power supplies or software versions. These differences can affect whether existing test results remain valid.
Documentation can also become a problem when test reports, technical files and product configurations do not match.
A clear compliance plan helps reduce these risks.
RED Compliance as Part of Market Access
RED compliance should not be viewed only as a regulatory obligation.
For manufacturers, it is also part of a broader market access strategy.
A product that has been designed with compliance in mind is usually easier to test, easier to document and easier to adapt for additional markets.
Planning for RED requirements early can therefore reduce time to market and avoid unnecessary redesign work.
This is especially important for companies developing products that will be sold in multiple countries.
Working With an Experienced Test Laboratory
An experienced testing laboratory can help manufacturers identify applicable standards, prepare a suitable test plan and perform the necessary evaluations.
This can include radio testing, EMC, electrical safety, cybersecurity and other product-specific assessments.
The goal is not only to complete individual tests, but to create a clear path from product development to regulatory readiness.
Hermon Laboratories supports manufacturers with testing and compliance services for radio equipment, connected devices and other products intended for European and international markets.
Conclusion
RED compliance is a key requirement for manufacturers of radio equipment entering the European market.
The process involves understanding which requirements apply, selecting the correct standards, performing the required testing and preparing complete technical documentation.
Manufacturers that address compliance early in the development process can reduce technical risks, avoid delays and improve their readiness for CE marking and EU market access.
For radio-enabled and connected products, RED compliance should be treated as an integral part of product development rather than a final administrative step.