SIM 800C GSM Modem with SMA Antenna
- Product SKU: R0918
- Category: Advanced Builds, Arduino Ecosystem, IoT Projects, Security & Surveillance Projects, Wireless & IOT, Wireless Module, Wireless-Iot, ₹500 to ₹1500
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) |
| GND | GND |
| Tx | Rx |
| Rx | Tx |
Features:
- 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.
Applications:
- 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)
Specifications:
| Model | SIM800C |
| Voltage Supply (VDC) | 9-12 |
| Quad-Band | 850/900/1800/1900MHz |
| Operating Temperature (°C) | -40 ~ +85 |
| Dimensions | 91x75x18mm |
| Weight | 40g |
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) |
| GND | GND |
| Tx | Rx |
| Rx | Tx |
Features:
- 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.
Applications:
- 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)
Specifications:
| Model | SIM800C |
| Voltage Supply (VDC) | 9-12 |
| Quad-Band | 850/900/1800/1900MHz |
| Operating Temperature (°C) | -40 ~ +85 |
| Dimensions | 91x75x18mm |
| Weight | 40g |
Return Policy Overview
At ROBODIUM™, we want you to be completely satisfied with your purchase. You may return most items within 7 days of delivery for a full refund or exchange.
Return Window
- Standard Returns: 7 days from delivery date for any reason, including if you simply changed your mind.
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Note: Products damaged due to misuse, modification, static discharge, soldering, or improper handling may not be eligible for return.
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- Provide your order number and reason for return
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Refund Process
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Replacements
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- If replacement is unavailable, we provide a full refund.
Warranty Terms
All products include a minimum 15-day warranty against manufacturing defects unless otherwise specified on the product page.
Warranty does not cover: misuse, soldering damage, modifications, physical damage, or incorrect electrical connections.
Order Cancellations
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- Contact us immediately at support@robodium.com to cancel before shipping.
- Once an order is shipped, it cannot be canceled but can be returned after delivery.
Customer Service Commitment
- Email Response Time: Within 24 hours on business days
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- Return Request Review: 1-2 business days
- Issue Resolution: Within 48 hours of verification
Need Help?
For any return, refund, or warranty questions, contact us:
📞 +91 8123109966 (Mon-Sat, 10 AM - 6 PM IST)
✉️ support@robodium.com
Last updated: January 2026
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