Opened,but new! Can set to dial monitoring centre, police and owners; Send text message or call up to 8 phone numbers automatically via mobile network, if an alarm occurs. Use a telephone to control your alarm system or you can control via the text message, from anywhere in the world. 99 wireless defense zones: Each defense zone can be coded one wireless sensor, so totally can be coded 99 wireless sensors; 8 wired defense zones: can be totally connected 7 different defense zone's wired sensors. Can store 6 phone numbers for call alert and store 2 numbers for alarm monitoring centre All the alarm system is wireless in signal transmission, no need to run wires and is easy installation