Product name:Micro-computer IC Card Water Boiler Model:HZK-30IC1 Voltage: 220V Power: 3kW current:13.6A capability: 28L produce:35L/h Water Tap:1 Size(mm): 400*255*730 characteristic: 1.A single IC card display the fee of water 2.Dual IC card display the fee of Drinkable water and Pure Drinking Water 3.If you want to buy this product,must purchase:A Card device ,Charge Machine and IC Card