'Measure Distance' unit

[Berényi Attila]

Hi there,

How could I change the unit of the 'Measure Distance' tool? Now it's in
'mi' and shows something the couldn't be the true distance. I'm using
PROJECTION
    init="epsg:23700"
END

This is the Hungarian Geodetic Date, and the master unit is meter.

Any suggestion?

Thanks in advance,

Attila