Features: 1)5 mm cold 1roll board 2) Applying microcomputer complex electronic coin selector selling goods accurately and preventing false coins and preventing eating coins effectively; 3)Auto-control and check computer program, auto-record the sum of commodity sold (Conserve the data when power outage 4)Coin acceptor has advanced ability to study new coins. It can distinguish 1-16 different dimensions of coins. Customer can operate it easily. Auto-Identify Money, real and counterfeit, and refuse false money and remnant coin. 5)Various sales mode, with-price, for-free etc. Customers can adjust the price optionally. 6)Environmental-protection & energy-saving design, non-Freon freezing.