SIM808 GSM + GPRS + GPS Cellular Module : ID 2637 : $29.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Amazon.com: Comimark 1Pcs GPRS SIM800C GSM Module 5V/3.3V TTL STM32 C51 with Bluetooth and TTS for Arduino : Electronics
SIM800A Kit Wireless Extension Module GSM GPRS STM32 Board Antenna Tested Worldwide Store more than 900A - AliExpress
SIM800L V2.0 5V Wireless GSM GPRS MODULE Quad-Band W/ Antenna Cable Cap M105 New | eBay
GSM GPRS Module SIM800L Module IPX Antenna Interface 4 Frequency 5V USB to TTL Serial Port
SIM800C Development Board GSM GPRS Module Support Message bluetooth TTS DTMF Quad-band
SIM800A Development Board GSM/GPRS Module STM32 Power Supply Replace S – diymore
SIM800A Development Board -Band GSM GPRS Module Wireless Transceiver Chip Kit Module for NANO /Support 4G - Walmart.com
A6 GPRS Module Development Board GSM GPRS Wireless Transmission Super SIM900A
A9 GSM/GPRS Breakout Board | Makerfabs
GSM/GPRS Module Explained | Definition, Working, AT Commands
GSM(800A) GPRS Module with RS232 Interface and SMA Antenna - Robosync
SIM900A Wireless GSM GPRS Module - ElectroPeak
Meteorology, Weather Station HD53GSM - GSM/GPRS Module - Delta OHM
Arduino GSM/GPRS Shield - SIM900 – Firgelli Robots
GSM/GPRS Module DIY Kit : 4 Steps (with Pictures) - Instructables
SIM800C Development Board GSM GPRS Module Support with Bluetooth TTS DTMF for Arduino | SatisLED
1set SIM800L V2.0 5V Wireless GSM GPRS MODULE Quad-Band W/ Antenna Cable Cap - ASK Electronics
GPRS A6 Mini Serial GPRS GSM Module Core Developemnt
A9G GSM/GPRS+GPS Module - DFRobot
Amazon.com: HiLetgo Smallest SIM800L GPRS GSM Breakout Module Quad-Band 850/900/1800/1900MHz SIM Card Slot Onboard with Antenna 3.7~4.2V : Electronics
Amazon.com: jdhlabstech GSM/GPRS Module + GPS: Compact Cellular Voice; Data and Global Position in a Single Module : Electronics
GSM / GPRS expansion module | Industruino
SIM800L GPRS Module Adapter Board SIM Card Micro Core Board GSM Module
GPRS Module Development Board Bluetooth TTS 5V/3.3V SIM800C GSM TTL For Arduino | eBay
SIM900 V2.2 Wireless Module GSM GPRS module Arduino (with sim card slot) | eBay
