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 Technical parameters: 
 ◎ working environment: -10 ℃ ~ 50 ℃ Relative Humidity 5% ~ 95%; 
 ◎ Operating Frequency: 13.56MHz 
 ◎ card operating distance: <5CM 
 ◎ card reader: 10 years 
 ◎ storage report the loss of card number:> 100 000 
 ◎ Built-in battery backup: 4-6 hours 
 ◎ product specifications and models: desktop: 280mm * 180mm * 95mm mount machine: 270mm * 195mm * 53mm