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MoreWhat’s the maximum read range of long-range RFID readers in industrial settings?
Long-range RFID readers in industrial environments typically achieve 8–15 meters (26–49 feet) under optimal conditions, with some high-performance models reaching up to 20 meters (65 feet). However, actual range depends on four critical factors:
1. RFID Frequency & Power
- UHF RFID systems (860-960 MHz) dominate industrial applications due to their long-range capabilities.
- Readers like the LR-8000 Long-Range RFID Reader can reach 15 meters at maximum power (4W EIRP in EU/ETSI regions, 1W FCC in the US).
2. Antenna Gain & Configuration
- High-gain antennas (10–12 dBi) focus signals into narrow beams for extended range. For example, pairing the LR-8000 with a directional antenna can boost coverage to 20 meters for conveyor belt or dock door applications.
- Circular-polarized antennas perform better in environments with metal obstructions.
3. Tag Type & Orientation
- Passive UHF tags with high sensitivity (e.g., Alien Higgs-9) achieve 12–15 meters on moving assets like forklifts or pallets.
- Tags mounted on metal surfaces (using on-metal RFID tags) reflect signals, reducing range by 30–40%.
4. Environmental Interference
- Metal structures, machinery, and liquids can block or scatter RFID signals. In steel-heavy factories, range may drop to 5–8 meters.
- RF interference from Wi-Fi or industrial equipment (e.g., welding machines) further limits performance.
Pro Tip: For large warehouses, deploy multi-reader zones with overlapping coverage. Use fixed RFID antennas mounted on gantries or ceilings to maintain consistent reads on high-speed assets.
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