1.GSM auto-dial alarm system 2.The system will call ... when it alarming Description:This product is the new GSM auto-dial alarm system. It combines two kinds of devices ... anytime.This alarm system is widely used for houses,shops, banks,offices, computer rooms, docks,streetlamps,garages, warehouses, orchards, ... Remote Controller 2pcsWired Siren 1pcsPower Adapter 1pcs GSM auto-dial alarm system