Teltonika TRM255 Industrial LTE Cat M1/NB-IoT/EGPRS Gateway with Digital I/O

The TELTONIKA TRB255 is a robust industrial IoT gateway designed for reliable machine-to-machine communication in demanding environments. This dual-SIM device supports LTE Cat M1, NB-IoT, and EGPRS connectivity, ensuring continuous data transmission even in areas with limited network coverage. Its auto-switch capability between SIM cards provides failover protection against network issues, weak signals, or data limits. The gateway features comprehensive I/O options including RS232, RS485, and configurable digital I/O pins, making it versatile for various industrial automation and monitoring applications. With its rugged design and wide operating voltage range (9-30 VDC), the TRB255 is ideal for remote telemetry, smart city infrastructure, and industrial IoT deployments where reliability is critical.