Description: 1. GSM-GPRS Technology: SIM900A is a versatile GSM-GPRS modem that supports both 2G GSM and 2.5G GPRS networks, enabling secure and reliable data transfer over the internet using cellular connectivity. 2. Wide Operating Voltage Range: This modem operates on a wide input voltage range of 3.4V to 6.5V DC, making it suitable for various powering options in IoT projects. 3. Compact Size and Lightweight: With its compact size (62mm x 38mm x 10mm) and light weight (46g), SIM900A is ideal for IoT devices that require a small form factor and efficient use of space. 4. SMS and Call Functionality: The modem supports both sending and receiving SMS messages, as well as making/receiving voice calls, allowing two-way communication between devices and users. 5. Integrated GPS Module: SIM900A comes with an integrated GPS module that provides accurate location data for asset tracking, fleet management, or navigation applications. 6. Multi-Function I/O Interface: The modem offers a versatile multi
| Specification | Details |
|---|---|
| Modulation Mode | GFSK (Gaussian Filtered Shift Keying) |
| Frequency Band | Quad-Band: 850/900/1800/1900 MHz |
| GPRS Class | GPRS Class 12 |
| Data Rate | Up to 85.6 kbps |
| Communication Protocol | AT Commands |
| Power Supply | DC 3.7V - 4.5V 1A |
| Operating Temperature | -20°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Dimensions | 35 x 25 x 2.8 mm (LxWxH) |
| Weight | Approximately 24g |
| Operating System | Supports various OS including Android and iOS |
| Connectivity Options | Micro SIM slot USB interface |
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