Features:Suitable for a variety of coins, and the coin diameteris 20mm ~ 30mm, thicknessis 1.7mm ~ 2.4mm.Controlled by CPU program, with high accuracy of scoring.Equipped unique electromagnetic interference prevention program.Design with accurate grade / normal grade, more smoothly to insert coins.Made of high quality plastic and metal, sturdy and durable in use.Can be used in arcade game machine.Specifications:Application coin diameter: 20mm ~ 30mmApplication coin thickness: 1.7mm ~ 2.4mmMaterial: plastic, metalWork temperature: -15 ~ 75 ℃Size:Approx. 124 x 124 x 64mm/4.9 x 4.9 x2.5inchWeight: 265gInstructions:1. Please remove the plastic COINS in the slot and replace the COINS to be used.2. For One yuan RMB coin, please transfer to RMB special file (SW3)3. With the need of circuit board, select N.O (often open) and N.C (often closed) switching,4. Select the CDIN signal length and speed three stage switch (SW2).5.The sensitivity adjustment of the coin selection of VR knobs, clockwise+, the selector is looser; counterclockwise -, the selector is stricter.Package Included:1 x CPU Coin Selector4 x Screw Bolt4 x NutNote:Please note that the new type and old type of this product will be sent randomly and make sure you will not mind before ordering..