Two base models: 4G, 4GX LTE with integrated LoRa-WAN Transceiver. Optional GPS/GLONASS receiver. Power Supply: Input voltage range 9 – 60 V D.C. with screw-lock connector. Solid Metal case construction, Operating Temperature Range: -40 to + 75 Deg. C. Twin Ethernet ports + Serial port configurable as RS232 or RS485. USB 2.0 Host interface. Two isolated Digital Inputs, with remotely monitoring. LED indicators (including RSSI), Built-in RTC, Watchdog, Timer, SMS & Call & Timed Re-boot. VPN Tunnel: IPsec/OpenVPN/GRE. Management: Web, CLI, SMS, RobustLink cloud service. Serial Port configurable as TCP Client/Server, Modbus Support, Virtual COM port. Supports RobustLink and Robust VPN.