My advice to Fnirsi, they better run away from the market of oscilloscopes.
Yesterday I did visit Fnirsi website for a fist time.
Wow ... the offered oscilloscopes listings, they have shiny 3D made presentation of images.
Per product specification ... partially detailed information's.
Within a few seconds, I started to think that ... we have here a New series of portable scopes ... this able to replace the discontinued GW Instek GDS-200 / 300 series.
About GDS-200 & GDS-300 series, after these staying in the market for 10 years, they are zero complains (recorded over the internet) about them.
The BNC connectors does not fall apart.
The charging system this does not stop working.
The Oscilloscope it is exceptionally accurate.
The Oscilloscope software, this is bug free.
DC fan for cooling, this does not fall apart.
Both major features, oscilloscope engine, and digital multimeter engine, both are reliable and trouble free.
I have here my GDS-320, which I keep as spare scope, while my GDS-2102A this is used as my primary.
From my personal experience, an 100% touchscreen scope, even if hardware this is excellent, this is not a replacement of classic format of an oscilloscope.
Fine detail controls, they are only possible due rotary encoders.
This is of why, the production of rotary encoders this will never stop at this planet.
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Fnirsi DPOS350P
Fnirsi succeed to steal the money of several inexperienced young people, and most painful fact, 95% of victims they are mostly poor people.
This story it is truly sad, when software and hardware issues came under the light, Fnirsi selected to hide.
Portion of the cheated customers, they was holding the wild hope, of an incoming firmware fix.
These idiots, continued defending Fnirsi, instead asking for a refund.
While the cheated customers, whom were reporting the problems, they were characterized as liars.
Fnirsi this does not accept, replacing equipment or refunding, any consumer.
This is against European Union laws, against moral laws, against of any logic.
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At ITTSB Blog, Fnirsi this is among the black listed Chinese brands.