HF-60D is the proximity card lock with high-tech design and beautiful appearance,it is ... sutiable for home,office,hotel,etc. Access type : Proximity card / Password / Mechanical keyCard ID Capacity : 100Card reading frequency : 13 ... batteriesEmergency power supply :DC9VDigital display,sliding cover,5 lock cylinder,low voltage warning,hidden lock hole,unlock historical record(optional) Color : ...