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Three solid science and technology - intelligent hotel lock SR839-1 performance specifications: battery-wave sensing technology, sensor more sensitive system components: proximity cards, door lock, card machine, emergency key emergency door: the card is lost or you can use the backup mechanical failure occurs Lock the door opening operation is simple: just lock the card on the sensor area can open the clutch handle: real external pressures prevent damage to the internal structure of user management: management card can add and delete users at any extension: You can expand the card, such as consumption, attendance, parking management applicable card: Supports Mifare one, EM card Working voltage:?? 6V, 4 high 5 alkaline batteries Static power consumption: <12 microamps Dynamic power consumption: 180 mA Battery life: 12 months brown tips: When the voltage is lower than 4.8V, the red light flashes tips, you can still open about 200 times emergency door: without any control even if locked, any one can open the door to start recording: data acquisition and software queries Mechanical key: Under no circumstances can the emergency mechanical key to open the door installation: door thickness at 38 ~ 60mm Contact: National Hotline: 400-605-1839 Website: http: //www.sangu333.com plane: 0769-89293098 ( 15 line switchboard) Fax: 0769-89293083-800 Email: sangu0007@163.com Address: South City new base longevity water Industrial Zone Dongguan Ming Building, 5th Floor, Dongguan Shek Pai electronic door locks, smart locks, hotel locks brand manufacturers, Dongguan Qishi electronic door locks, smart locks, hotel locks brand manufacturers, Dongguan Hengli Electronic door locks, smart locks, hotel locks brand manufacturers, Dongguan bridge electronic door locks, smart locks, hotel locks brand manufacturers, Dongguan Xie Gang Electronics door locks, smart locks, hotel locks brand manufacturers, Dongguan Dongkeng electronic door locks, smart locks, hotel locks brand manufacturers, 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