What's 3D-NLS price range

There are many different 3D-NLS and other health detecting analyzer in the market selling in very differnt price.
This market makes customers confuse.
The truth is 3D-NLS with different hardware and software setting, so price also will be different.
A very important issure always ignore by customers, DHgate,ebay or other website shop selling device in lower price.
Thinking about it, the shop without skill and engineer, if any software or hardware problem, they have no way to settle it.
We always get what we pay for.
In general the 5th generation 3D-NLS without shipping price over USD500 each set.

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