Updated SIMCOX SIM900 Module Quad Band Wireless GSM/GPRS Shield Development Board For Arduino

Features:

1. Quad-Band 850/ 900/ 1800/ 1900 MHz
2. GPRS multi-slot class 10/8
3. GPRS mobile station class B
4. Compliant to GSM phase 2/2+
Class 4 (2 W (AT) 850/ 900 MHz)
Class 1 (1 W( AT) 1800/1900MHz)
5. Control via AT commands (GSM 07.07 ,07.05 and
SIMCOM enhanced AT Commands)
6. Short message service
7. Free serial port selection
8. All SIM900 pins breakout
9. RTC supported with SuperCap
10. Operation temperature: -40 ~ +85