SIM900 Module 4 Frequency Development Board GSM GPRS Wireless Data

The SIM900 GSM/GPRS Development Board is a compact and powerful quad-band wireless communication module designed for IoT and embedded applications. It enables seamless GSM connectivity for sending SMS, making calls, and transferring data over GPRS networks. Built with a robust industrial-grade design, it supports AT command-based control for easy integration with microcontrollers like Arduino, Raspberry Pi, and other embedded systems. With its embedded TCP/UDP stack and RTC support, the module is ideal for remote monitoring, data logging, and real-time communication projects. Its low power consumption and wide temperature range make it suitable for both prototype and industrial deployments. Features: Quad-band GSM support (850 / 900 / 1800 / 1900 MHz) SMS, voice call, and GPRS data communication Embedded TCP/IP stack for internet connectivity AT command control (SIMCOM + GSM standards) Low power sleep mode for battery-based projects Industrial-grade operation (-40°C to +85°C) Specifications: Item type: GSM/GPRS Wireless Communication Module Network Support: Quad-band GSM (850 / 900 / 1800 / 1900 MHz) Interface: UART Serial Communication Data Services: SMS, Voice Calling, GPRS Internet Protocol Support: TCP/IP, UDP Power Class: Class 4 (850/900 MHz), Class 1 (1800/1900 MHz) Operating Voltage: Typically 3.4V – 4.4V Power Consumption: ~1.5mA (Sleep Mode) Temperature Range: -40°C to +85°C Control Standard: GSM 07.07, 07.05 + SIMCOM AT Commands Connectivity Ports: SIM slot, UART, Speaker, Headphone Jack Special Features: RTC support, embedded TCP/IP stack, low power mode Form Factor: Compact development board for embedded systems Board Diamentions : 78 x 55 x 13 mm Weight : 39 g Package Includes: 1 x SIM900 Module 4 Frequency Development Board GSM GPRS Wireless Data 1 x Nano sim Adapter

Specifications

Frequency Bands	850 / 900 / 1800 / 1900 MHz
Data Protocol	GPRS Class 10/8, SMS
Interface	UART serial communication
Power Class	Class 4 (2W) & Class 1 (1W)
Control	AT Commands (GSM 07.07 / 07.05)
Operating Temperature	-40°C to +85°C
Shipping Weight	0.048 kg
Shipping Dimensions	14 × 13 × 3 cm