Hello Portugal .
It looks that about Batronix , your are dealing with an German company ,
that offers something with 3 years warranty.
Its not the first time , that Germans or English companies ,
makes deals with Chinese companies, and they offer one product range,
that it was previously inspected and tested by the importer it self.
Re brand, its an common trick , because if it was called as FUK-NA-CHEN ,
you would probably avoid it.
Interesting enough, those Germans they have the product range of RIGOL about bench multimeter,
and oscilloscopes , and the Batronix range as portable multimeter's.
Their technical papers , looks well made , but not top.
I will say yes .. get it , the three years warranty , and the faith of the seller on the product,
its positive signs , that you do not find easily , when you buy similar stuff , on super market baskets for
9.99 EUR .