When you go into the casino, you can see the smoke sensor everywhere. Do you know there are smoke sensor camera lens in the market? Our smoke sensor spy camera can be used for scanning the barcode marked deck in poker room. We fix a mini size camera lens inside the smoke sensor in order to read the luminous ink bar code marked cards. And this camera lens is difficult to be found by other poker players because it was hidden secretly. With this excellent smoke sensor playing cards scanner in hand, you can get poker result in advance. Together with the wireless sender and the poker receiver, you can know the poker results at the distance of 50-100m, 200-300m even longer distance.