that will give me
indication when specific electrical device is turn on.
that device current consumption is around 1 Amp,
and it connected to the wall plug (220VAC).
I tried to used electromechanical relay that will get swithed when
current flow through it, but it didnt work
since the coil of the relay has a relative high resistance (around 7K ohm)
and it does not enable 1 AMP currnt flow through it.
the result was that the switch was turn on but the electrical device
didnt have enough current to turn on.