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This Wireless Password Keyboard For Gsm Alarm is triggered by magnetic sensor, suitable for windows and doors when opening. It has a bright red light that can be seen from far away, therefore, this device is useful for people with hearing loss. The 110 decibel sound of a wireless door alarm can help deter intruders, or alert your neighbors. The apartment alarm system is suitable for for family, business, apartment, hotel room, garage, rv, etc. Smart sockets can control the power supply of electronic devices through the network. You can control the on/off state from anywhere with a network connection via your mobile phone.
