LIMITLESS PRODUCTS SIM900A GSM Modem with SMA Antenna (GSM Module) Micro Controller Board - Product Features
- Voltage Input: 6V to 12V DC INPUT, On Board Voltage Regulato
- INTERFACE: Voice Communication port, RS232, EXTERNAL TTL INTERFACE
- DATA Tx/ Rx: GSM/GPRS 900/1800/1900 Mhz for VOICE, SMS, DATA, FAX
- Chipset: SIM 900A