... time, date, card number, company name, names, etc* Data does not lose power* Wall, desktop dual-use Technical Parameters ... Model: MK3500NOperating Temperature: -20 °C ~ 60 °CEnvironmental humidity: ≤ 95%Storage temperature: -30 °C ~ 70 °CPower supply: AC220V/50HZPower: 15WCard ... TI card MeLucky cardCommunication Protocol: TCP / IP or GPRSOffline storage: Data is not lost power to support 9,000 5,000 ...