Multiple Bands - The 4G LTE industrial router primarily works with AT & T, T-Mobile, Rogers, Telus used for North America, but it's not for Verizon. It supports below bands LTE-FDD B2/B4/B12, WCDMA B2/B4/B5. Industrial Grade - The 4G LTE modem router adopts high performance 32-bit communication processor and industrial IoT/M2M-optimized LTE Cat 4 module as well as deeply customized OpenWRT system. Featured with protection level up to IP30 metal enclosure, system safety isolation, DC 7~36V wide voltage input, operation temperature(-40+75), it's ideal for industrial control field application. Stable & Reliable - The 4G LTE wireless router is equipped with hardware and software watchdog which ensures the stability of system; Complete anti-drop mechanism to ensure that the data terminal is always online; Multiple protection like anti-power reverse connection, anti-surge, ESD anti-static, lightning protection.