4G LTE Industrial Wireless Gateway Collie is a compact and cost-effective industrial 4G router. Equipped with the external full-band 4G antennas, the aluminum alloy shell and the hardware watchdog, the mobile router ensures stable LTE connectivity in harsh and hazardous environments. Collie can also serve as a smart industrial Internet gateway with the functions of RS485 interface and the optional IoT module for a range of IoT applications including vending machines, charging piles, smart agriculture, metering, and more. Max.150 Mbps Wi-Fi Speed Built-in 4G Module Built-in Watchdog Built-in Bluetooth or Zigbee Module (Optional)