... and 2 wire guarding zones ; Remote arm/disarm b Security alarm system/burglar alarm systemWireless GSM intelligent burglar alarm Model ... of single-family, residential tenement, industries of power, transportation, petroleum, coal, railway and municipal department, public security departments.Functions of GSM ... );Current : AC 110V~220V, 50~60Hz; DC 9~12V; Security alarm system/burglar alarm system