Communication Modules (GSM/4G)
Build connected IoT and M2M projects with Wirelays GSM, GPRS, and 4G LTE communication modules. We stock genuine, tested modules with breakout boards, antennas, and documentation — everything you need to add cellular connectivity to your embedded design.
Our bestselling SIM800C module handles voice calls, SMS, and GPRS data over 2G networks — ideal for remote monitoring, alert systems, and legacy M2M deployments. For high-speed data and VoLTE on modern 4G networks, the A7670C and A7672S 4G LTE modules offer reliable connectivity with AT command compatibility, TTL serial interfaces, and onboard SIM holders.
Specialised modules in this collection:
- SIM800C GSM/GPRS — quad-band 2G, voice + SMS + data, TTL serial
- A7670C / A7672S 4G LTE — Cat-1 LTE, SMS, TCP/HTTP, Arduino-compatible
- MC60 GPS + GSM — combined cellular and GNSS positioning in one module
- ESP32 + GSM boards — WiFi, Bluetooth, and cellular on a single development board
Every module communicates via standard AT commands over a TTL serial interface, making integration straightforward with Arduino, ESP32, Raspberry Pi, and custom microcontroller boards. Ideal for GSM modules for IoT projects including weather stations, tank level monitors, and security alert systems. All products ship across India with technical support from Wirelays.
