GPRS/GSM Wireless Intruder Alarm control panel GPRS networking alarm GSM Remote intercom and monitoring Automatic detection GPRS/GSM Wireless Intruder Alarm controller Technical FeaturesPowerDC5V/0.5ABack-up Power3*5#/1600mAH rechargeable batteryRadio Frequency433MHZ (Encryption)Wireless Distance100m (open area)Static Current≤100mAWork Environment -15°C~50°CDefense Area MAX.99Alarm Volume> ...