SIM808 GSM/GPRS/GPS Bluetooth Compatible Development Board With GPS Antenna COM45 ,R17

"GPS NEO-6M Satellite Positioning Module Development Board for STM32 usb 51 neo6m（with Battery

Ublox GPS NEO-8M GPS module GY- NEO8MV2 (with Battery)

"Ublox NEO-7M GPS Module with EEPROM for C/AeroQuad with Antenna （with Battery）

GPS Module Ublox NEO6MV2 Module Aircraft Flight Controller F

GPS-NEO M8N ublox NEO-M8N-001 eighth Beidou GPS module APM2.6 Flight Controller

SIM900 Module GSM GPRS Shield expansion board wireless module Function more than TC35i for Arduino

Goouuu air200 development board GPRS GSM Kit Wireless Extension Module Board Antenna Tested Worldwide Store for SIM900A A6 GSM

SIM900 Module GSM GPRS Shield expansion board wireless module Function more than TC35i for Arduino

You can add GSM/ GPRS connection feature to your Arduino projects with GPRS Shield. You can use functions as dialing number and sending SMS easily with AT commands. To communicate between module and Arduino you can use Arduino's hardware serial port or software serial port which can be defined by Software Serial library.