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  • Single supply voltage: 3.4V – 4.5V
  • GSM class: Small MS
  • Operating Temperature: -30ºC to +80º
  • Transmitting power: Class 4 (2W) at EGSM 900, Class 1 (1W) at DCS 1800
  • Storage Temperature: -5ºC to +90ºC
  • Power saving mode: Typical power consumption in SLEEP mode is 1.5mA

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The SIM900A GSM/GPRS Module is a highly versatile and reliable communication module widely used for wireless data transmission in various applications.

The SIM900A module supports GSM for voice communication and GPRS for data transmission.
It offers seamless connectivity to cellular networks, but enabling reliable communication over long distances.

Operating on four frequency bands (850/900/1800/1900 MHz), the module ensures compatibility with GSM networks worldwide. This global coverage allows for international deployment of applications.

Facilitates data transmission over GPRS, so making it ideal for IoT (Internet of Things) applications, remote monitoring systems, and telemetry solutions.
It allows devices to send and receive data packets over the internet.

Enables the sending and receiving of SMS (Short Message Service) messages and voice calls.
This functionality is crucial for applications requiring remote alerts, notifications, or voice communication.

Designed for low power operation, ensuring energy efficiency.
This feature is essential for battery-powered devices, so extending their operational life and making them suitable for remote or portable applications.

Equipped with General-Purpose Input/Output (GPIO) pins, so allowing interfacing with sensors, actuators, and other electronic components.
This enhances its versatility for various projects, because this enabling seamless integration with existing systems.

Communicates with microcontrollers and host systems using AT commands, simplifying the process of configuring and controlling the module.
This ease of use allows for seamless integration into projects, reducing development time.

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For more information:-www.mifraelectronics.com 



  • CALL SMS GPRS facility – MIC input, LINE input and SPEAKER output pins
  • Supports communication through RS232 with DB9 Connector, TTL Pins and I2C Pins
  • Option for connecting MIC and SPEAKER directly to GSM MODEM for calls
  • Perfect suited for GSM based Microcontroller Projects (better than SIM300 and other GSM Modems)
  • Use in the area of full signal strength.
  • power supply 12v 1amp to 2 amps max

* Product Images are shown for illustrative purposes only and may differ from actual product.

Package Includes:

  • 1 x SIM900A GSM GPRS Module.

Weight 0.2 kg


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