The SIM800A AE GSM GPRS Module With SMA Antenna is an industrial 2G cellular module built on the SIMCom SIM800A chipset, supporting GSM 900MHz and 1800MHz networks with full voice call, SMS send/receive, GPRS data, TCP/IP communication, and GPRS internet connectivity functions. The gsm 800a module operates from 9V to 12V DC, provides RS232, UART, and I2C communication interfaces, and ships with an SMA antenna for immediate deployment. The sim800a gsm with antenna SMA connector accepts the full range of GSM external antennas for signal optimisation in different installation environments.
The sim800a gsm module datasheet, the SIM800A uses SIMCom’s AT command set — the same command structure used across the SIM800 series — enabling GPRS internet connectivity, HTTP requests, and TCP socket communication through AT commands over the RS232 or UART interface. The sim800a gsm gprs module with rs232 interface is directly compatible with industrial PLCs, panel computers, and legacy RS232 serial equipment without any additional logic level conversion hardware.
The sim800a ae gsm gprs module’s -40°C to +85°C operating range qualifies it for outdoor unattended deployments across. this module operates on 2G GSM and GPRS only — it does not support 3G, 4G LTE, or VoLTE. In areas where 2G network coverage has been reduced or discontinued by operators, verify local 2G network availability before selecting this module for new product deployments.
The non-obvious advantage of the SIMCom SIM800A chipset over third-party GSM modules is firmware update support — SIMCom provides official firmware packages and AT command documentation, reducing integration time and support overhead compared to modules with undocumented firmware. StemVolt provide this module is well-suited for engineers developing industrial GSM IoT systems and practical cellular embedded electronics projects.
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Checkout the GSM, GPS & GPRS modules for reliable wireless communication
Features:
- Voice calls SMS and GPRS data all supported via AT command set
- TCP/IP socket and HTTP communication through GPRS internet interface
- RS232 UART I2C interfaces for PLC MCU and legacy serial device integration
- SIMCom SIM800A chipset with official AT command and firmware documentation
- -40°C to +85°C industrial temperature range for harsh outdoor deployments
Technical specifications:
| Specification | Details |
|---|---|
| Model | SIM800A GSM/GPRS Module |
| GSM Chipset | SIMCom SIM800A |
| Network Support | 2G GSM / GPRS |
| Voltage Supply | 9 V – 12 V DC |
| Frequency Bands | GSM 900 / 1800 MHz |
| Operating Temperature | -40°C to +85°C |
| Interface | RS232, UART, I2C |
| Antenna | SMA Antenna (Included) |
| Supported Functions | Voice Calls, SMS, GPRS Data, TCP/IP, Internet via GPRS |
 Applications:
- IoT project uses gsm 800a module for GPRS sensor data upload
- SIM800A AE GSM GPRS Module With SMA Antenna used for SMS alert system project
- Remote meter reading uses sim800a gsm gprs module for GPRS report
- PLC gateway uses sim800a gsm gprs module with rs232 interface link
- Outdoor sensor node uses sim800a gsm with antenna for winter deployment
Package includes:
- 1 x SIM800A AE GSM GPRS Module With SMA Antenna














Pritesh Pandey –
Module with SMA antenna provides reliable GSM communication and RS232 connectivity for automation, monitoring, and DIY electronics projects
Dilip Kothari –
Received this SIM800A module with fast delivery and secure packaging, setup was straightforward and technical support helped with initial configuration queries.
Nutan Darak –
Bought for a DIY project from a robotics store in Rajasthan, module worked exactly as expected and UPI payment process was smooth and convenient.
Sonam Chadda –
Fast delivery service
Sanjay Kapadia –
Safe packaging received
Kanishk Tanwar –
Fully satisfied purchase
Pankaj Sharma –
Perfect for robotics and STEM applications, offering stable network communication and easy integration with microcontroller-based systems