In the global IoT market, wireless modules must not only deliver excellent performance, but also obtain the mandatory access certifications required by target markets. Certifications such as CE (EU), FCC (US), REACH (EU chemicals regulation), and RoHS (environmental) are the necessary "passports" for products to enter mainstream markets including Europe and North America.
The classic product E22-400T22S from Chengdu Ebyte Electronic Technology Co., Ltd. (EBYTE), with its CE, FCC, REACH, and RoHS four international certifications, has become a highly trusted LoRa wireless data transmission module. This article provides an in-depth analysis of the meaning of these certifications and how the E22-400T22S, with its outstanding product features, has become an ideal choice for global customers in long-range, low-power IoT applications.
| Certification | Name | Regulatory Region | Core Requirements |
|---|---|---|---|
| CE | EU Mandatory Safety Certification | European Economic Area (EEA) | Product meets EU basic requirements for safety, health, and environment; mandatory for entering the European market |
| FCC | US Federal Communications Commission Certification | United States | Ensures the product's electromagnetic radiation and interference immunity meet US standards; mandatory for entering the US market |
| REACH | EU Regulation on Registration, Evaluation, Authorisation and Restriction of Chemicals | EU | Regulates the production and use of chemicals in the EU market, ensuring products meet environmental, health, and safety requirements; a comprehensive environmental compliance standard |
| RoHS | Restriction of Hazardous Substances Directive | EU | Restricts the content of six hazardous substances such as lead and mercury in electrical and electronic products; an important mark of environmental compliance |
The fact that the E22-400T22S has obtained all four certifications simultaneously means it has met the access thresholds of the most stringent markets in the world, providing strong compliance assurance for customers' product exports.
| Certification | Description |
|---|---|
| CE | Meets EU safety and EMC standards, ensuring legal sales and use in the European market |
| FCC | Meets the US Federal Communications Commission's EMC requirements; the module is printed with an FCC ID, allowing legal access to the North American market |
| REACH | Complies with the EU regulation on registration, evaluation, authorisation and restriction of chemicals, ensuring the product is harmless to the environment and human health during manufacturing and use; a comprehensive environmental compliance standard |
| RoHS | Free of lead, mercury, and other hazardous substances; meets environmental requirements, safer to use |
Certification completeness: ★★★★ (Four certifications, comprehensive assurance, accessible in Europe and North America)
Obtaining global certifications is only one reflection of a product's capability. The E22-400T22S itself is equally impressive in its product design and technical parameters.
Core chip: Based on a SEMTECH high-performance RF chip, ensuring outstanding RF performance;
LoRa spread spectrum technology: Adopts new-generation LoRa spread spectrum modulation technology, delivering longer communication distance and stronger anti-interference capability.
High transmit power: Maximum transmit power up to 22dBm (160mW), transmitting farther and more stably;
High receive sensitivity: Receive sensitivity down to -147dBm (at 2.4kbps air rate), at a leading level among similar products;
Ideal communication distance: Under ideal conditions, the communication distance can reach 5km, meeting long-range IoT application needs.
| Functional Feature | Description |
|---|---|
| Automatic relay networking | Supports automatic relay networking; multi-level relay for ultra-long-distance communication; multiple networks can operate in the same area |
| Communication key | Supports user-configured communication keys that cannot be read, greatly improving the confidentiality of user data |
| LBT function | Supports listening to channel ambient noise before transmission, greatly improving communication success rate in harsh environments |
| RSSI signal indication | Supports RSSI signal strength indication for evaluating signal quality, improving communication networks, and ranging |
| Wireless parameter configuration | Supports sending command packets wirelessly to remotely configure or read wireless module parameters |
| Air wake-up | Supports ultra-low-power functionality, suitable for battery-powered applications |
| Deep sleep | Supports deep sleep mode, with total module power consumption of about 3uA in this mode |
| Serial firmware upgrade | Supports firmware upgrade via serial port, making firmware updates more convenient |
| AT command configuration | Supports AT commands for more convenient use |
| Packet length setting | Supports packet length setting; packets can be split into 32/64/128/240 bytes for transmission via commands |
Wide voltage supply: Supports 2.7–5.5V power supply, with optimal performance guaranteed above 5V;
Industrial-grade temperature range: Supports long-term operation at -40 to +85°C, adapting to various harsh industrial environments;
Efficient watchdog design: In the event of an anomaly, the module automatically restarts and continues working according to the previous parameter settings;
Parameter power-off retention: After powering back on, the module operates according to the configured parameters.
| Parameter | Value | Remarks |
|---|---|---|
| Operating band | 410.125–493.125MHz | Supports ISM band |
| Max transmit power | 22dBm (160mW) | - |
| Receive sensitivity | -147dBm | At 2.4kbps air rate |
| Reference distance | 5km | Open, clear, antenna gain 5dBi, antenna height 2.5m, 2.4kbps |
| Air data rate | 2.4k–62.5kbps | User-programmable |
| Transmit length | 240 Byte | Can be split into 32/64/128/240-byte packets via commands |
| Supply voltage | 2.7–5.5V | ≥5V guarantees optimal performance |
| Transmit current | 110mA | Instantaneous power consumption @22dBm |
| Receive current | 16mA | - |
| Sleep current | 3uA | Software shutdown |
| Operating temperature | -40 to +85°C | Industrial-grade standard design |
| Package form | Surface-mount | 1.27mm stamp hole |
| Antenna interface | IPEX/stamp hole | Equivalent impedance about 50Ω |
| Communication interface | UART serial | TTL level, compatible with 3.3V |
| Dimensions | 16 × 26mm | - |
| Net weight | 1.95g | - |
With its four certifications, excellent performance, and long-distance communication advantages, the E22-400T22S is widely used in the following fields:
| Application Field | Specific Scenarios | Core Advantages |
|---|---|---|
| Home security alarm | Remote keyless entry, wireless door sensors, infrared alarms | 5km communication distance, full coverage of the home and yard without dead zones |
| Smart home | Smart lighting, curtains, appliance control | Low power, supports air wake-up, suitable for battery-powered devices |
| Industrial sensors | Factory equipment data acquisition, environmental monitoring | Industrial-grade temperature range, automatic relay networking, suitable for complex industrial environments |
| Building automation | HVAC control, lighting control, energy management | Automatic relay networking, multiple networks coexisting, stable and reliable |
| Wireless industrial remote controls | Industrial equipment remote control, crane control | LBT function, strong anti-interference, high communication success rate |
| Advanced metering infrastructure (AMI) | Remote metering of water, electricity, and gas meters | Low power, long range (5km), suitable for distributed meters |
As a classic LoRa wireless data transmission module from Ebyte, the E22-400T22S, with its complete combination of CE, FCC, REACH, and RoHS four international certifications, has become the compliance assurance for entering the core European and North American markets. This certification matrix not only provides solid compliance assurance for customers' product exports, but also demonstrates Ebyte's strong strength in RF design, electromagnetic compatibility, and environmental compliance.
Choosing the E22-400T22S means choosing a high-performance, highly reliable, green LoRa wireless communication solution recognized by global authoritative certifications, allowing your IoT projects to cross borders and pass through without barriers.