... 3, LCD display alarm 4, wireless alarm LCD display gsm alarm system wirelessThe home LCD GSM alarm systemModel:VIP-603 Main Features :1, LCD display, with ... 99 wireless defense zone for alarm system5, Industrial WAVECOME module, very stable6, Can call 5 phone numbers and send ... parameter for the gsm alarm system wireless:Operating voltage: Input 100-250V, output 12V. Wireless receiving distance: >100m ...