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SIM 800C GSM Modem with SMA Antenna

SIM 800C GSM Modem with SMA Antenna

Regular price Rs. 649
Regular price Rs. 850 Sale price Rs. 649
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  • This is SIM 800C GSM Modem with SMA Antenna
  • Quad-Band GSM/GPRS engine operating on frequencies from 850 MHz to 1900 MHz.
  • RS232 interface for direct communication with computers or MCU kits.
  • Configurable baud rate ranging from 9600 to 115200.
  • Onboard regulated power supply compatible with a wide range of power sources.
  • Capable of making audio calls, sending/receiving SMS, reading SMS, and accessing the internet.
  • Equipped with a robust high-current low dropout linear voltage regulator.

SIM 800C GSM Modem with SMA Antenna

This is SIM 800C GSM Modem with SMA Antenna, The baud rate range of the GSM Module can be easily configured using AT commands, allowing you to set it anywhere between 9600 and 115200. This versatile GSM GPRS Modem incorporates an internal TCP/IP stack, enabling seamless internet connectivity through GPRS. Its capabilities make it a perfect choice for M2M interface applications that involve SMS, voice, and data transfer.

One of the standout features of this modem is its onboard regulated power supply, which offers compatibility with a wide range of unregulated power sources. This means you can connect the modem to various power inputs without any hassle. With this modem at your disposal, you can effortlessly perform numerous tasks such as making audio calls, sending and receiving SMS, reading SMS, and accessing the internet using simple AT commands.

The modem utilizes the highly reliable Quad-Band GSM/GPRS engine SIM800C, manufactured by SIMCOM, which operates on frequencies ranging from 850 MHz to 1900 MHz. To establish a direct connection with a computer or any other RS232 compatible devices, the modem features a convenient DB9 female connector. The necessary RS232 level conversion is seamlessly achieved through the use of the reliable MAX3232 module from MAXIM Semiconductor.

To power the modem, a 5-12V DC power supply is required, and you have the option to provide it either through the onboard 2-pin RMC connector or the DC jack. To effectively handle situations where high surge currents (up to 2A) may be encountered, the modem is equipped with a robust high current low dropout linear voltage regulator.

Connection Details:

The module has to be powered through the onboard DC jack with an input voltage between 9-12V The module can be connected to the microcontroller via the onboard UART or I2C pins. The module also contains an onboard RS232 connector, to connect to other devices via RS232 protocol.

Micro-controller SIM800C
5V VCC (not required if powered externally)
Tx Rx
Rx Tx


  • Quad-Band 850/900/1800/1900MHz.
  • RS232 interface for direct communication with computer or MCU kit.
  • Configurable baud rate.
  • ESD Compliance.
  • With slid in SIM a card tray.
  • With a Stub antenna and SMA connector.
  • High-quality PCB FR4 Grade with FPT Certified.


  • Remote Data Monitor and Control.
  • IoT Applications
  • AMR (automatic meter reading).
  • Power station monitoring and control.
  • Remote POS (point of sale) terminals.
  • Traffic signals monitor and control.
  • Fleet management.
  • Vending machine.
  • Traffic info guidance.
  • Parking meter and Taxi Monitor.
  • Telecom equipment supervision (Mobile base station, microwave, or optical relay station)


Model SIM800C 
Voltage Supply (VDC) 9-12
Quad-Band 850/900/1800/1900MHz
Operating Temperature (°C) -40 ~ +85
Dimensions 91x75x18mm
Weight 40g

Shipping & Returns

  • All orders confirmed before 3 pm IST are shipped on the
    same day, barring rare pickup delays on holidays or disturbances
  • Delivery time in Metro cities is 1-3 days, Others it is
    3-7 days. It varies based on location, reliant on courier services
  • Return window: 7 days from receipt unless stated
    otherwise. No refunds/replacements after
  • Returns only for non-working/damaged products are accepted
  • Initiate return requests to our customer service team via Support ticket or contact us at +91-8123057137
  • Refunds are processed within 3-4 working days post inspection and approval.

For more details, please check our Shipping and Return Policy

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1.What is the communication interface of SIM800C GSM Modem with SMA Antenna?

  • SIM800C GSM Modem with SMA Antenna has two communication interfaces: RS232 and TTL UART. It can be configured via AT commands and works with microcontrollers using UART breakout. 

2.What library is used to communicate between Arduino and SIM800C GSM Modem with SMA Antenna?

  • The "<SoftwareSerial.h>" library is used to communicate between Arduino and SIM800C GSM Modem with SMA Antenna. It allows serial communication on other digital pins of Arduino besides RX and TX pins.