... zones for remotes (Supports up to 4 remotes or wireless keypads per zone). Sipports 8 more wired zones( ... greeting back.Arm\ Disarm the system by 5 ways: SMS, Main Host(Keypad), Wireless Keypad, Keychain Remotes, or even ... the system is disarmed only, if a door is opened, it will sound fast “bi bi bi”)Support wireless “ ... <80%Product dimension:150×107×26(mm) PSTN Wireless Alarm System (LCD Touch Screen)