A new kind of optically transparent electrode based on very fine galvanically deposited metal meshes (1500 wires/inch similar or equal to 60 wires/mm) and mechanically stabilised by insulating the edge and the connection wire by thermal laminating foil is presented for use in electrochemistry with common solvents, The new electrodes were characterised by cyclic voltammetry as well as by ESR-UV-vis spectroelectrochemical measurements. The extremely fine mesh (with the scope of the diffusion layer exceeding the range of wire distance) with the well insulated border enables us to describe the voltammetric as well as the spectroscopic behaviour with the simple model of finite planar diffusion.