
① GSM Antenna
② SIM-card slot (on top)
③ Radio Antenna (433.9 MHz local communication)
④ GSM Signal LED
⑤ Radio LED
⑥ Alarm LED
⑦ Error LED
⑧ Power connector (on the bottom side)
⑨ GPRS activation code (on the backside)
⑩ Multifunction button (registration, shut down, reset)