Model Number: GSM solar siren-007GSG Brand Name: wolf-guard Key Specifications/Special Features: ◆The system apply GSM communication technology ,can send remote SMS/call emergency alarm;◆ Can set 5 groups of alarm telephone to call in turn ;In alarm status ,press disarm button to stop the alarm.◆ Can set 5 groups of alarm message numbers,when alarm, automatically send alarm SMS to preset alarm number.◆ Can code 30 wireless detectors(code 30 wireless remote controllers and wireless defense zone in total )◆ 1 cable detector input port can be connected to wired detectors.◆ Remote monitoring and intercom;◆ Alarm with LED flashing lights, flashing fast.◆ Top 5 zones have alarm SMS modify function.◆ Built-in rechargeable battery, power without stopping.◆ Charging by solar energy