What is Mid-Range Sub-GHz ISM?

Mid-Range Sub-GHz ISM refers to wireless communication technologies operating in the 433 MHz, 868 MHz, and 915 MHz frequency bands that are designated for industrial, scientific, and medical use. These frequencies offer superior penetration through walls and obstacles compared to higher-frequency bands, making them ideal for large-scale IoT and M2M deployments.

Sub-GHz ISM networks are commonly used for long-range sensor monitoring, smart metering, industrial automation, and asset tracking. By incorporating RFID, devices can uniquely identify and monitor assets across warehouses, factories, and logistics chains. BLE integration further enhances device connectivity and allows mobile devices or gateways to communicate with sensors efficiently. This combination of Sub-GHz, RFID, and BLE delivers a hybrid system that balances range, low power consumption, and real-time data capabilities.

At GAO RFID Inc., we leverage decades of expertise in RFID and BLE technologies to design, manufacture, and support Mid-Range Sub-GHz ISM solutions that meet the rigorous demands of U.S. and Canadian markets. Our R&D investments ensure that our systems provide secure, scalable, and reliable connectivity for IoT ecosystems. Whether remotely monitoring industrial assets or deploying large-scale M2M networks, we offer the tools, technical knowledge, and onsite support needed to implement successful Sub-GHz ISM solutions.

International Standards for Mid-Range Sub-GHz ISM

To ensure compliance and interoperability across global markets, Mid-Range Sub-GHz ISM devices typically adhere to the following international standards:

• IEC 61000-4-3 – Electromagnetic compatibility (EMC) testing for radiated RF immunity
• ETSI EN 300 220-1/2 – Short Range Devices operating in 25 MHz to 1,000 MHz
• ISO/IEC 18000-7 – RFID air interface standard for 433 MHz
• IEEE 802.15.4g – Standard for Low-Rate Wireless Personal Area Networks (LR-WPANs) for smart metering and IoT

U.S. and Canadian Regulations for Mid-Range Sub-GHz ISM

• FCC Part 15 – Radio Frequency Devices regulations for unlicensed ISM bands in the U.S.
• IC RSS-210 – Canada’s requirements for license-exempt radio apparatus
• IEEE 802.15.4g/4e – U.S. and Canadian adoption for low-power wide-area network applications

Applications of Mid-Range Sub-GHz ISM

Mid-Range Sub-GHz ISM solutions are widely deployed across multiple industries, including:

• Industrial automation and machine-to-machine (M2M) monitoring
• Smart metering and utility monitoring
• Asset tracking and warehouse management via RFID integration
• BLE-enabled mobile and IoT device connectivity
• Environmental sensing and remote condition monitoring
• Healthcare device monitoring and hospital asset management
• Agriculture and smart farming applications
• Logistics and supply chain optimization

GAO RFID Inc. designs and implements these systems to maximize reliability, low-power operation, and long-range connectivity, while ensuring seamless integration with RFID and

BLE networks for advanced IoT solutions.

GAO Case Studies

• Atlanta, Georgia, U.S. – Deployed a mid-range Sub-GHz ISM network integrated with BLE sensors to monitor industrial machinery remotely.
• Chicago, Illinois, U.S. – Implemented Sub-GHz IoT network with RFID-enabled asset tracking in a large warehouse environment.
• Dallas, Texas, U.S. – Installed Sub-GHz M2M network for smart energy management in a manufacturing facility.
• San Francisco, California, U.S. – Leveraged Sub-GHz ISM and BLE integration for environmental monitoring across multiple office sites.
• Boston, Massachusetts, U.S. – Deployed a hybrid Sub-GHz and RFID solution for logistics tracking and inventory management.
• Houston, Texas, U.S. – Integrated Sub-GHz ISM sensors for predictive maintenance on heavy industrial equipment.
• Seattle, Washington, U.S. – Developed a secure M2M communication network using Sub-GHz ISM and BLE-enabled gateways.
• Miami, Florida, U.S. – Monitored environmental and building automation systems with Sub-GHz ISM connectivity and RFID tagging.
• Toronto, Ontario, Canada – Established a Sub-GHz ISM IoT network for asset and workflow tracking in a research facility.