VSTAR wireless home security systems G70-GT 1.GSM ... telephone. This alarm system is widely used for security protecting, data surveying and remote monitoring in ... department of electricity, petroleum, coal, government, public security and so on Function InstructionNumerous Defense Zones: 8 ... a telephoneOne-key-control function: Out Arm, Home Arm, Remote ArmSOS, fire, gas, door, hall, window, balcony, ...