● Uart to 4G:AT commands and data transmission, TTL-3.0V
● TCP/UDP/HTTPD/SMS transparent transmission
● TCP /UDP/IPV4/IPV6/HTTP/MQTT/DNS/SSL/TLS
● Cloud support: MQTT via AWS IOT, Thingsboard, Alibaba Cloud, EMQX, Tuya,Cumulocity IoT and so on.
● EFT/Surge IEC 61000-4-5 Level 3;
● ESD IEC 61000-4-2 Level 3
● Hardware watchdog
● SMS,NET,Serial AT command configuration