OK. Thank you.
I bought this item to forgetfull seller replace one wrong order that this sent to me(was not my fault and I tryed to help him) and the seller forgot again to repair his fault. Well, about this product I bought 2 pieces and for the same load(0.5 amperes) one Ammeter show 0.5 amperes and the other one measure 1,0 amperes. I am a Luck man because I can fix the error of the factory in this eletronic device.