Robustel GoRugged M1000 Pro V2 is a robust gateway for serial to cellular transmissions with dual SIM. It offers state-of-the-art 2G / 3G connectivity for M2M applications. Dual SIM redundancy for continuous cellular connection. Various SIM backup polices: PING/Monthly data traffic/Roaming. Auto GPRS/UMTS connection (no AT commands required). Remote configuration via RobustLink/TCP/SMS. Remote firmware upgrade via RobustLink/TCP. RS232/RS485 selectable by software. Support DI trigger sending SMS(optional). Six LED indicators provide signal strength and running status. Watchdog for reliable communications. Wide range input voltages from 9 to 36 VDC and extreme operating temperature. The metal enclosure can be mounted on a DIN-rail or on the wall, also with extra ground screw.