Catalog > Consumer Electronics > Security & Alarms > Alarms > Alarm Systems GSM Communicator GSM Communicator SMS Backup 12VDC Dual Sim TCP/IP GSM Communicator with SMS Backup Part No: MEGSM-01+PM Discontinued Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Features SIM pin lock GPRS with SMS fail-over or SMS only Application server (GPRS, SMS-to-TCP/IP) with management software Intuitive application software 3 time-settable modes available per output port (latch, toggle, pulse) Output port activation via SMS or missed call (optional confirmation via SMS) Up to 2 master (can alter settings remotely) users and 100 regular users User-settable input activation trigger-duration Input activation on high or low trigger SMS alerts sent concurrently to up to 3 destinations Specifications 2 x relay outputs (5A, 220V AC, 28V DC) 1 x digital output (0V low, 5V high) 2 x digital inputs (0V 24V DC) Supply requirements: (12V, 500mA) External UART (3.3V or 12V) External I2C bus Real time clock/calendar with power backup Dual SIM Status indication LED (Tri-colour) Quad-band GSM module (Class 10 GPRS) External SMA connector Low-power standby mode Additional Information Brand Sentry Downloads Datasheet - MEGSM-01 PDF File 1.74 MB