Mainly applied to the security of power transformer, electric transmitting line and street lamp line etc. Send mms to user’s phone Monitor 3 phase loss voltage and single phase failure of the electric distribution network. With 4 routes of wired input alarm Call and sms several phones automatically while alarming and drive wiretap, can clearly hear the voice on the scene. It will alarm when power transformer is damaged or moved. Can connect with the alarm center through gsm network. The system has power-off protection function. When the external power supply is damaged or the power is off, the system can continue to work with a backup battery. Completely sealed aluminum outer shell: waterproof, anti-corrosion, fireproof, strike preventing which are suitable for outdoor installation. This system is mainly applied to the security of power transformer, electric transmitting line and street lamp line etc. Packaging weight: 4kg Packaging dimension: 300(l)*138(w)*235(h) mm Standard package included:bl-3030 mainframe x1?wireless digital keypad x1?camera x1?user manual x1