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This is a real button which can provide you to be used on your shirt or Jacket or coat, this is a common
object, while more common objects, it is hard to discover or realize them, they will be more convenient to be used, as it is a shirt button camera on the chest to scan marked cards for poker analyzers.
why it called auto sensor camera? Because this button camera will focus the image of markings
of cards automatically, once the cards go through the camera, it can catch the bar code picture and transfer back to analyzer, analyzer tell you the result in 0.1s,
As for the distance, this auto button camera has 2 kinds of different distance:6-12cm,24-40cm.
6-12cm is suitable for scanning the cards on the hands which is good for dealer; while 24-40cm is suitable for the cards put on the table which is good for players.
Distance:6-12cm
Distance:24-40cm
