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 Technical parameters: 
 (1), the working environment: -10 ℃ ~ 50 ℃ Relative Humidity 5% ~ 95%; 
 (2) Operating Frequency: 13.56MHz 
 (3), the card operating distance: <5CM 
 (4), card reader Time: 10 years 
 (13), the number of store loss report card:> 10 million copies 
 (14), built-in backup battery: 4-6 hours 
 (15), product specifications and models: Desktop: 280mm * 180mm * 95mm 
 Hanging machine: 270mm * 195mm * 53mm