GSM SIM800A TTL Only Modem


Hardware Specifications

  • SIM800A Quad Band GSM Module
  • Voltage Supply- 3.7VDC to 4.2VDC
  • GSM- Speaker, Mic, TTL Rx and TTL Tx Outputs
  • Provision for GSM Antenna
  • Size: 55mm X 35mm



  • GPRS Connectivity for serial/legacy devices such as Energy Meters, SCADA Systems, PLC, Machine Automation devices, RFID etc.
  • Accurate timing for clocks and other systems from GPRS
  • GSM/GPRS based reporting systems

Unique Advantages

  • This device is completely our own development
  • Almost any modification that is possible can be done on custom requirement
  • Tested for reliability and ruggedness
  • Repairable
  • Made in India

GSM SIM800A modem is a complete GSM/GPRS solution in a LGA type which can be embedded in the customer applications. SIM800A support Quad-band 850/900/1800/1900MHz, it can transmit Voice, SMS and data information with low power consumption. Featuring and Embedded AT, it allows total cost savings and fast time-to-market for customer applications.