Description: RF with 4 batteries (1.5V); Managing 500 usual cards and 1 main keycard (adding or deleting); Dynamic power ≤300mA; Static power≥15 μA. This lock is the Prox-card intelligent electronic lock and is applied to the commercial building and apartment and related common access.Escutcheon: American style, shows solid, simple and generous. high-quality structure(zinc alloy or stainless steel) with exquisite and brushed surface; No screw on outlier; Five parts of latch to anti outside force.Opening card : TM(DS1990) Usage: issue opening card.Managing card: TM(DS1996) Usage: issue main card.