... and telephone. This alarm system is widely used for security protecting, data surveying and remote monitoring in families, shops ... and department of electricity, petroleum, coal, government, public security and so on Function InstructionNumerous Defense Zones: 8 wired and ... Arm, Remote ArmSOS, fire, gas, door, hall, window, balcony, and boundary places alarmReal-time, delay, 24 hours, bypass defense ...