1.Power Supply:DC6V, use of 4 pieces of AA batteries, with lack of voltage indications. 2.Static Power Supply:<1uA 3.Dynamic Power Supply:About 200mA 4.Lifetime of battery:For the allowed door open times, it normally can exceed 20, 000 5.Record inside the lock:256 lines for standard type, exceed 1, 000 lines for special demand 6.Setting Requirement:Working temperature -20~70 centigrade, humidity≤98% 7.Anti-static Electricity:>15, 000V, it ensures information inside the lock not missing under the interference of strong static electricity.