LoRa Technology for stable, worry-free communication - Spread-spectrum communication reduces interference and extends transmission distance, delivering reliable data transmission in challenging environments. Automatic Relay Networking - Supports relay networking with multi-level relays, enabling ultra-long distance or complex-environment coverage and scalable network growth. Communication Key - Users can set the encryption key themselves; only receiving modules with the same key can receive data, and the key cannot be read. LBT Function (Listen-Before-Talk) - The module actively monitors channel noise before sending and delays transmission when noise exceeds the threshold to minimize collisions. 2-3 practical use scenarios - Remote environmental sensing in agriculture or weather stations across large fields, with stable links and long-range reach. - Industrial automation and monitoring in complex factory floors or underground facilities needing reliable, extended-range communication. - Asset tracking and smart logistics across campuses, ports, or warehouses using relay networking for broader coverage. Key attributes - Function: LoRa wide-area communication with anti-interference spread-spectrum, automatic relays, secure data with user-set keys, and channel-aware transmission. - Performance: improved stability, longer range, scalable networking, and reduced data loss in noisy environments. - Compatibility: designed for LoRa-based networks and typical LoRa modules to enable broad interoperability.