... System fits any type of installations, up to 10,000 users, 30000 in and out records. ... Controllers fits any type of installations, up to 10,000 users, 30000 in and out records. ... indicate the inputs, outputs and communication status. Specifications l Dimension: Y.link01/02:160*110*28 mm Y ... Operating Temperaturel 220V, 50HZ input, 12V, 3A outputl 10,000 Users, 30000 recordsl Flash ROM Power off Protectionl ...