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Imported from USA.
This fully self contained water electrolyzer comes complete with
carbon electrodes, plastic tank, graduated plastic test tubes,
and wire connectors for either binding terminals or alligator
clips. This device simply and effectively demonstrates
electrolysis of water and the separation of Hydrogen and Oxygen.
Requires 6-12 Volts DC for operation such as a lantern battery or
variable power DC power supply. Instructions included.