This powerful and compact wireless IoT module is built on the AIR780E platform, offering seamless relay control via LTE Cat.1 networks with GSM fallback. It is ideal for applications requiring reliable switching and remote automation, such as smart gates, pumps, security systems, and industrial controls. With USB Type-C programming support, UART-based AT command control, and compatibility with LuaTools for firmware customization, this module is developer-ready for real-world IoT deployment.

Specifications

• Cellular Network: LTE Cat.1 with 2G fallback
• Main Chipset: AIR780E
• Relay Output: 1× mechanical relay (NO/NC dry contact)
• Control Method: UART (AT commands)
• USB Port: Type-C (requires data-capable cable with DM/DP lines)
• Firmware Tool Support: LuaTools v3 (Windows 10 or higher recommended)
• SIM Card Interface: Nano SIM slot with ESD protection
• Power Supply: 5VDC
• Communication Baudrate: Default 115200bps (configurable)
• Rx/Tx level: 3.3VDC
• Antenna Interface: SMA connector for external 4G antenna
• LED Indicators: Power, Network, Relay status
• Operating Temperature: –30 °C to 75 °C
• Installation: DIN rail or wall-mount (enclosure optional)

Features

• Global 4G Connectivity with GSM fallback for redundancy
• USB Type-C Programming using LuaTools (easy setup via Windows)
• Relay Control via UART AT Commands or cloud platforms (SMS/MQTT/TCP, firmware-dependent)
• Plug-and-Play Friendly with LED diagnostics and simple wiring
• Wide Input Voltage range suitable for field and industrial environments
• Strong Signal Reliability with external antenna and robust RF design
• Reliable Hardware Protection including ESD-safe SIM slot
• Customizable Firmware via LuaTools for advanced integrations

User guide: IoT 4G networking single relay AIR780E module