... + Landline Auto-dial Home Security Alarm SystemModel: LS-GSM-100B LS-GSM-100B Alarm System Features: 1. Absolutely wireless alarm system, if intruder ... room, window, balcony or surrounding alarm.17. Various programming functions for zones, such as real time, delayed, 24 hours ... and efficient way.19. Various functions, such as remote control, system arming/disarming, monitoring and intercom.20. Inquire ...