Module

SIM908 (Integrated GSM/GPRS + GPS)

GSM Bands

Quad-band: 850/900/1800/1900 MHz

GPRS

Class 12, max 85.6 kbps (download/upload)

GPS

22-channel receiver, sensitivity: -165 dBm (tracking)

Position Accuracy

<2.5m (GPS), <5m (Assisted GPS)

Power Supply

5V–12V DC (Shield input), 3.4V–4.5V (SIM908 logic)

Current Draw

Peak: 2A (GSM transmit), Idle: ~50mA

Interfaces

UART (TTL) for AT commands, GPIOs, Mic/Speaker (audio)

Antenna Ports

GSM (SMA), GPS (SMA) (external antennas included)

SIM Card Slot

Standard 3V/1.8V SIM (supports most carriers)

Operating Temp.

-30°C to +80°C

Dimensions

Approx. 70mm × 60mm (Arduino shield form factor)