SIM900A GSM GPRS Module with RS232 Interface and SMA Antenna (Dual-Band GSM Modem Module)

The SIM900A GSM GPRS Module with RS232 Interface is a wireless communication module designed for GSM voice calls, SMS messaging, and GPRS data communication. Based on the SIM900A GSM modem, it supports dual-band GSM networks and provides reliable wireless connectivity for embedded systems and industrial applications. The onboard RS232 serial interface enables direct communication with computers, PLCs, and microcontrollers using standard AT commands, while the SMA antenna connector allows the use of an external antenna for improved signal reception. It is ideal for IoT, remote monitoring, telemetry, industrial automation, and wireless control systems.

Key Features -

• Based on SIM900A GSM/GPRS modem

• Supports GSM voice communication

• SMS sending and receiving

• GPRS packet data transmission

• RS232 serial communication interface

• Standard AT command support

• SMA connector for external antenna

• Reliable wireless communication

• Compact and durable module design

• Suitable for industrial and IoT applications

Specifications -

• Product type - GSM/GPRS Communication Module

• Module model - SIM900A

• Cellular technology - GSM/GPRS

• Network type - GSM Dual-Band

• Communication interface - RS232 Serial

• Control method - AT Commands

• Antenna connector - SMA

• SIM card type - Standard SIM Card

• Data service - GPRS

• Mounting type - PCB Module

• Operating temperature - Standard Ambient

Applications -

• IoT devices

• Remote monitoring

• Industrial automation

• SMS alert systems

• Wireless telemetry

• Home automation

• Security systems

• Embedded communication projects