How Can 2.4G Wireless Communication Break Through in Industrial Transmission and Control?

The 2.4GHz wireless technology has been widely adopted due to its global availability, license-free spectrum, and technological maturity. However, it still faces certain limitations in communication range. According to industry experience and relevant studies, many industrial IoT scenarios—especially in large-scale factories, warehouse logistics centers, and outdoor remote monitoring—often require wireless coverage of over 200 meters. In contrast, mainstream 2.4G control technologies such as Zigbee and BLE typically operate reliably only within a few dozen meters. This gap in coverage often leads to “dead zones” during deployment, posing a significant challenge to the broader adoption of 2.4G technology in medium- to long-range industrial control applications.

For large-scale networking or kilometer-level communication needs, Sub-GHz technologies like LoRa are undoubtedly more suitable. However, when the required communication distance is just over 200 meters, around 500 meters, and there is a desire to continue using the globally license-free 2.4 GHz band, 2.4 GHz solutions often fall short. Meanwhile, remote sensor terminals and outdoor automation control points mostly rely on battery power, placing stricter demands on ultra-low power consumption for wireless modules—this has led to the emergence of enhanced 2.4 GHz solutions combining low power consumption with medium-to-long range capability.

For this specific demand, we recommend our latest RF9209 2.4G communication module. It primarily uses the EM9209 wireless transceiver chip from EM Microelectronic-Marin (a specialized RF manufacturer under Switzerland’s Swatch Group), making it a cost-effective 2.4 GHz option that meets the requirements of industrial control scenarios needing moderate long distance and extended battery life.

Comparing Mainstream 2.4G Wireless Control Technologies: Which Is More Suitable for Industrial Applications?
To clearly demonstrate the suitability of different 2.4G technologies in industrial control, below is a comparison of power consumption and transmission range for several common 2.4G communication solutions:

Note: The data in the table are typical values provided for reference in module selection. Actual performance may vary depending on module design and real-world application environments.

As shown, most 2.4G technologies fall short of industrial transmission requirements. In contrast, the RF9209 stands out with its low power consumption, extended range, and flexible data rate configuration—making it a more suitable choice for scenarios sensitive to power efficiency and coverage distance.

RF9209 Module: An Industrial Communication Solution Balancing Low Power and Long Range

Power Efficiency:
The RF9209 module features ultra-low power consumption, with typical current draw under 7 mA in receive mode. Even in transmit mode, it maintains excellent efficien

cy: approximately 11 mA at –1 dBm and stays below 36 mA at +10 dBm. This makes it ideal for battery-powered devices requiring long-term, remote operation.

Transmission Capability:
In open environments, the RF9209 achieves communication distances up to 500 meters—far exceeding conventional 2.4G solutions. With a high receiving sensitivity of –115 dBm (@1.5 Kbps), it delivers strong anti-interference performance and penetration. It supports flexible data rates ranging from 1.5 Kbps to 72 Kbps, meeting the real-time demands of control applications while enabling periodic lightweight data return. This makes it suitable for extended use cases like remote status acquisition and basic monitoring.

In addition, the module integrates a voltage regulator, supports frequency hopping (FHSS), features low-voltage detection, and offers stable industrial-grade operation across a wide temperature range of -40 to +85°C.

In the field of industrial control, 2.4GHz wireless technology is widely used, but its limited communication range remains a key bottleneck. Overcoming this challenge requires a multi-dimensional approach:

Technically, the development of more efficient modulation, coding, and antenna technologies is essential to improve transmission distance and stability.
In terms of power consumption, adopting low-power chips, optimizing circuit design, and implementing intelligent sleep mechanisms can significantly extend device battery life.
For environmental adaptability, enhancing interference resistance, signal penetration, and wide-temperature operation ensures suitability for complex industrial scenarios.

In addition, customized development based on specific application needs is crucial to balancing performance and cost. Rather than relying solely on product promotion, it is through technological innovation and scenario-based adaptation that 2.4GHz wireless technology can evolve toward smarter, more efficient solutions in industrial control.