I don't think anyone has any experience with the Newcon stuff, but I do know for a fact they make high end military grade LRF's on par with MELIOS. If you look at the prices on their high end stuff, it follows the general trend of $1 per meter for LRF's over 2000+ meters. Their best one (it's been a while) was $27,000 and was good to 26km with all sorts of other shit built in. I wanna say our military uses some of them but don't quote me on it. Something I read a long time ago or maybe it had an NSN.
Then you get down to their lasers, and those just look like shit. I have heard of one guy that bought one and compared it to PEQ and said it didn't hold up, was cheaper, not collimated properly and just poor in general. I considered one of their long range ones just for use as a long range illuminator, but I'm not so sure they'll even be good for that.
If they make one that slaves to GPS or ballistic software, that's a plus. Mine doesn't do shit but ping the target and give me a number. I'll have to enter everything manually when I get a PDA and software.
So where the line is between junk and military grade, I have no idea. What I'd do if I were you is to buy one from a place with excellent CS and explain to them up front you'll be returning it simply if you don't like it. If they say yeah, go for it. If you like it, keep it (and PLEASE review it on here!). If you don't, still write it up, but return it and no loss, no foul.
If you're patient and check ebay regularly (you may have to do this for a year or more now!) you'll eventually run into a Mk5 LRR-104 for sale. I bought mine literally only an hour or two after it was listed. Search for that and also search for military range finders. Originally priced $10,000 (which checks out at $1 per meter like I said!). That's a military LRF good to 10km or just over 6 miles. They have class 4 lasers, so gotta be very careful. Eyesafe lasers capable of being used in long range LRF's literally came out the next year, 1999/2000 as the mfg. sold out to Grumman, so they were military obsolete in less than a year. But for us? They don't make anything better for the price.
LRF is on top of the custom observation rig I put together and comes in a big foam case. Lots of people think they don't work because they don't know to remove the lens cap off the laser. They may sell it as is or in non working order. Ask what the problem is and if it comes with the laser filter cap and if they removed it. If yes, and no they didn't remove it, chances are they don't know how to use it. Safety is also training mode, so with the lens cap on you get all sorts of bizarre and random readings. But for $400, I'm not complaining a bit. It's accurate to 10m @10km and the 7x viewer is extremely high quality with one of the thinnest ranging reticles I've ever seen in an optic like this, an LRF.
Good luck in your hunt! Patience and persistence pays off, it surely does.