Product Description for Smart 3G/GSM Security Alarm System Enhance your security infrastructure with our Smart 3G/GSM Security Alarm System, a versatile and reliable solution designed to keep you informed and protected. This advanced alarm unit combines cutting-edge technology with user-friendly features to deliver unparalleled security for your home or business. Explore the key features that make this alarm system an essential addition to your security toolkit: Versatile 3G/GSM SMS Alarm Operates on a 3G/GSM network to provide robust and reliable security alerts. With its DC5-15V power input, the alarm system can be powered efficiently, and an external rechargeable battery (not included) ensures continuous operation even during power failures, providing peace of mind and uninterrupted protection. Simple Switch Signal Input Designed for straightforward integration, the system uses a switch signal input. When the input port is short-circuited with the ground wire (GND), the alarm is triggered, ensuring immediate response to unauthorized access or system tampering. Customizable Alerts and Notifications Personalize your security notifications by setting custom alarm messages. The system can send an SMS alert or place a phone call to your designated alarm number, ensuring you receive critical information in your preferred format. Multi-Device Alert Capability When triggered, the alarm system is capable of sending SMS alerts to up to six preset mobile phones. This functionality ensures that multiple contacts can be alerted simultaneously, enhancing the speed and efficiency of your security response. Compact and Smart Design Featuring a sleek and slim GSM design, this alarm unit is easy to install on various system boards. Its compact form factor allows for seamless integration into existing security systems, adding GSM alarm functionality without requiring extensive modifications. Choose our Smart 3G/GSM Security Alarm System to enhance your security measures with cutting-edge technology and reliable alerts. Whether for home or business use, this system provides comprehensive protection and peace of mind, ensuring you're always informed and prepared.