SIM900 A V3.8.2 module

Overview :

This SIM900/A V3.8.2 module has a set of TTL level serial interface, a set of RS232 

level serial interface, a set of power supply interface. Besides, there are two set of 

Basic features:

Arduino 51 STM32 AVR MCU compatible
Prototype expand
The dual frequency 900/ 1800 MHz, GPRS multi-slot class 10/8,GPRS mobile station class B
Power supply range: voltage is 4.6-5.2v; current is 1A or more(the current is very important).
Low power consume: 1.5mA (sleep mode)
Operating temperature range: -40 degrees C to +85 C
Communication interface: The TTL level serial interface compatible 2.85 3.3 5v MCU
Size:49*50mm