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Elecrow Sim808 Bluetooth Gsm Gps Shield For Arduino Simcom Quad-band Sim808 Gsm/gps/bt Module 3 In 1 Developed Board 3 Antennas - Integrated Circuits - AliExpress
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SIM808 instead of SIM908 module GSM GPRS GPS Development Board IPX SMA with GPS Antenna available for Raspberry Pi for arduino - ASK Electronics
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Adafruit FONA 808 Shield - Mini Cellular GSM + GPS for Arduino : ID 2636 : $49.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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