It can be used for automaticly selling system-it can be used for 6 different kinds of coins (1, 5, 10).According to the material and diameter of coins, it is very accurate to identify true coins.You can freely set the required currency, do not need to compare the sample money, CPU automatically memorize the set of coins.Support coins with only one signal output.WIDE APPLICATION: Can be applied in game machines, vending machines, coin-operated telephone, coin-operated washing machines, coin-operated toy cars, massage chairs, etc.Power source: DC12VApplying coin diameter: 15mm-29mmApplying coin thickness: 1.8mm-3.0mmOperating temperature: -10-60℃4pin socketColour: silver + blackMaterial: plastic + metalPackage Contents:1 * Coin acceptor1 * Connecting line1 set * Mounting screws (The appearance of screws with different batches)Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.