6AG1011-1AC00-1AA0 - SIPLUS GSM-KIT TC35IT: GSM MODEM TC35I TERMINAL WITH MAGNETIC BASE ANTENNA, POWER CABLE APPROX. 1.5M AND ANTENNA CABLE APPROX. 2.5M; DATA ADAPTER FOR DIN RAIL MOUNTING (siemens) - Quad Industry
Siemens TC35i serial port gsm modem m2m sms modem Wireless Internal Modem : Amazon.in: Electronics