The accessory e015 SM910 for DA18K dataloggers is a complete M2M terminal powered by a nominal voltage of 12VDC. It is enclosed in the datalogger metal box that guarantees a considerable immunity to radiated and conducted noise. The terminal has an integrated TCP/IP STACK allowing the TCP connection through the public phone network. The terminal has two LEDs for indicating the operating status. It is available in 4G M1/NB1 categories and category 1 with 3G and 2G fall back that guarantees an increased network coverage. Use: it can be used as a terminal for 4G data connection or for sending SMS.