[Sintron] Ch-924 Multi Coin Mech Acceptor , for Vending Machine , Message Chair , Arcade Game Etc... Product Details Product Dimensions: 5.5 x 5.1 x 2.8 inches Item Weight: 11.2 ounces Shipping Weight: 11.2 ounces Manufacturer recommended age: 6 months and up Capable of accepting all worldwide Coins and Tokens. Intelligent CPU software control, and high accuracy . Self-programming without PC. Accept 1~4 different kinds of coins at the same time. Free to set up pulses' output number and ratio CH-924 is a multi coin selector, can accept up to 4 kinds of different coinsat the same time. This type of coin selector is widely used in Vendingmachine, Arcade Game, Message chair, and other self-management system. CH-924is mainly based on material, weight and size to identify coins. We use themost up to date algorithm to design software. Therefore, CH-924 is very stableand accurate even when environment changes such as temperature, and humidityetc... In order to increase the accuracy, we suggest different version ofcoins use different channel to set up.