👉 Support All Protocols Such as IEC 101, IEC104 👉 5G/4G Network, Trend Leading, National Invention Patent 👉 State Grid Network Hardware Encryption 👉 User Configuration Information Anti-lost Mechanism 👉 Efficient Remote Device Management

👉 Support Standard AT Command 👉 SMS, dial-up Internet access, CSD function 👉 Industrial grade design, excellent quality 👉 Ultra-low power, DC 5-35V. Suitable for industrial application 👉 Normal operating temperature -35℃~75℃