water electrolyzer

Water electrolyzers provide us with the simple and cheap way to test water quality.Specification of water electrolyzer:The water electrolyzer is used to test the water purity level,the client can see the condition of drinking warter.4rods:2 aluminum bar and 2 iron barseTesting methods:1.Prepare for water---using white glass with 100-500ml water capacity,one glass is filled in running water and the other glass is filled in RO pure water,put them in the table side by side.2. Prepare for testing---put the eletrolyzer in the glass ,then insert to the power.3.Testing---turn on the button "on",and test for 30 seconds,then turn on the "off",remove the water electrolyzer.