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[Scale Subthread] Gem Pro Scales

dankoni

dankoni

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Joined
Sep 6, 2007
Messages
960
http://www.myweigh.com/gempro.html

SCDS50.jpg
GemPro150.jpg


GEM PRO 50.............................................................................................. GEM PRO 150 ..............................................................................................

gempro250-tray-large.jpg


GEM PRO 250

Posts are copied from the B&D Scale thread up to page 10.

[original post:]

In regards to the "ebay scales"

If you are dealing with RCs that need accuracy to within 1-2mgs, then they are not recommended. If you are dealing with something like DMT or MDMA, they are not bad. And for the $19.95 current price tag at saveonscales, you cannot beat that deal. Plus, the Jennings ones come with a 5 year warranty. You ship them to a US place of business and they guarantee to fix it or ship you a new one within 2 days. But I completely agree that if you are dealing with sensitive RCs, then if you have the money to buy the RCs, you have the money to buy an Acculab VIC-123 or at least a GemPro250. Just don't let people tell you GemPros are crap. Yes, the GemPro50 was crap, but the 150 and 250 are supposed to be nearly as accurate as an Acculab and moreso than a Tanita. But, if you're going to spend $170-$190 on a GemPro250, why not pay $218 for the Acculab VIC-123? That's what I will be buying next unless they come out with a better one.
 
Last edited by a moderator:
dankoni said:
In regards to the "ebay scales"

If you are dealing with RCs that need accuracy to within 1-2mgs, then they are not recommended. If you are dealing with something like DMT or MDMA, they are not bad. And for the $19.95 current price tag at saveonscales, you cannot beat that deal. Plus, the Jennings ones come with a 5 year warranty. You ship them to a US place of business and they guarantee to fix it or ship you a new one within 2 days. But I completely agree that if you are dealing with sensitive RCs, then if you have the money to buy the RCs, you have the money to buy an Acculab VIC-123 or at least a GemPro250. Just don't let people tell you GemPros are crap. Yes, the GemPro50 was crap, but the 150 and 250 are supposed to be nearly as accurate as an Acculab and moreso than a Tanita. But, if you're going to spend $170-$190 on a GemPro250, why not pay $218 for the Acculab VIC-123? That's what I will be buying next unless they come out with a better one.
Click to expand...

I have a GemPro 150 purchased new for $170. It's a fine scale, and I doubt you can do much better for the money (maybe the Acculab VIC-123 is better, I dunno). It is quite accurate within 1mg or so provided the batteries are new or it is on wall current; when the batteries get low, the thing's accuracy falls apart completely. It's also a huge battery hog. One set of four AAA batteries lasts for about 20 minutes of accurate weighing. Basically I don't use batteries unless I have no other choice.
 
^^ Like I said, anything under the $170-$220 mark is going to be about the same. From what I have heard, the Gempro250 is very good. Almost as accurate as the Acculab VIC-123, but since the Acculab is only about $50 more, that is my choice for my next scale purchase.
 
^ yea, i know and even the most durable scales are probably not 3 y/o proof, kids can get into anything if they try :\ my daughter mimics everything i do as well so if she saw me fooling around with it, she'd probably think it was a toy and try to play with it.

i went ahead and ordered it anyway. i figure it's better to have SOME form of measurement instead of eyeballing chemicals. i'm only going to be using it to weigh out things ~20mg+ so i think i'll be ok for now. it's not the best scale but for $31.90, i'm not gonna complain.
 
^^ I have it. If you are not going to get a gempro250 or an Acculab VIC-123, then this is the smartest buy, IMO.
 
I've had three scales so far.

The first was a Jennings something or other, I forget exactly, it was 10g x 0.001g supposedly. In my experience, I found that it was actually quite accurate, but that it was not very precise. I had to weigh each sample three or four times to figure out what it actually weighed.

Then, I got a MyWeigh Gempro 50, the 10g x 0.002 one. I found it to actually be both very accurate and precise, and I loved it to death. However, I accidentally left it with a friend who moved to Seattle, and they subsequently lost it.

Being so satisfied with my previous MyWeigh, I purchased a Gempro 250, 50g x 0.001g. I love it! It is very accurate and precise, and it comes with many useful things. In addition to the scale, the package included an instruction manual, a 20g calibration weight, an AC adapter, a tray with well-placed handles and a convenient spout for pouring powders and crystals directly into gel caps, and a case that contains all of the previous items for easy transportation. I can't speak highly enough of it. I've never used an Acculab, but I can't imagine it getting much better than this.
 
We just bought a Gempro 250, for under 200 bux. GREAT scale, precise as hell, never moves more than a single mg in any direction, no matter how many times you take something on and off, I love it :)
 
i was struck with a sudden fear about the quality of my scale, it cost me about 25 dollars and looks exactly the same as the one xork uses (different brand though) which makes me think that one factory in china is stamping out every ebay scale and putting different labels on them. i have never had any problems, it is def a decent scale.

BUT

now i feel guilty for being a cheapskate, and i think its time to invest in something a bit more reliable for the piece of mind if nothing else. my friend has an acculab (a hulking monster that needs to be plugged in around the clock) that cost over 300 dollars but the weights drift worse than my 20 dollar scale, not something i want to deal with. I found the gempro250, the look is good, and the price (166) is high enough that i can feel like im responsible, and low enough that i wont instantly associate it with the drugs it could have been.

can anyone give me some feedback on this scale, i know the older gempros are a bit controversial, but the new ones seem fine, if anyone gives me a good reason to go for the acculab i would be willing to pay but from what i have seen i am not impressed.
 
After getting tired of the Gemini's unreliability at very low measurements, I'm trying to decide between an Acculab VIC-123 and a Gempro250. What I really need in a scale is something that is reliable and accurate even down to the range of 5-10mg. Can anyone with experience using these scales comment on their capabilities for this?
 
i'm extremely satisfied with my gempro250
i have not yet used the acculab but most will suggest one or the other.

i have a long history with myweigh scales and they have never let me down so i opted for the gempro
 
Some other options

Just another issue, I hope you guys can help me out a bit.
I found some scales which are half way through the Pro Scale Precission-10 and the GemPro-250 as regards price and quality. Not too bad, yet not too expensive.

The Jennings Mack-20 (http://www.saveonscales.com/product_js_mack_series.html) is pretty exact and reliable. It`s not a GemPro250, neather a cheap chinese scale. It might be precise even under the 10mg range. The only thing that I dislike about this one is that it has a precission of 2mg instead of having a precision of 1mg. Why would they make it of 2mg instead of 1mg? But this makes me wonder... Is it worth buying a somewhat precise 2mg scale over an unmprecise and cheap 1mg scale? Probably yes.

On the other hand there's the Jennings VG-20 (http://www.saveonscales.com/product_js_vg_series.html). In the site it is clearly said that it has a precission of 0,0002g - 2mg. I am very confused because 0,0002g is 0,2mg, and not 2mg. Does this mean that the rest of the balances which suppostly have a precission of 0,001g are in fact 10mg? Or is there just a problem with the Jennings VG-20 and the rest of the balances' specifications are correct. In that case, does the Jennings VG-20 read in 0,002g (2mg) or in 0,0002g (0,2mg)? I suppose they just wrote one more 0 than they should of, and that this balance actually has a precision of 2mg. In that case, its an OK balance, similar to the previous one. Pretty reliable and precise, and at the same time moderately cheap. But again, ¿why does it have a precision of 2mg intead of 1mg? ¿Is it worth it even so?

Finally there's the GemPro-50 (http://www.saveonscales.com/product_mw_gempro50.html), the "younger brother" of the GemPro-250. Its obviously not as precise, but its still reliable and trustworthy. Some of you guys are in discontent with this product as you were expecting more out of the younger brother, however others are very pleased with the results, as this balance i actualy quite precise in comparison with other balances of the same price. Again, it has a precission of 2mg instead of 1mg, as the previous ones. Is this a really important issue? I mean, I wont be fully satisfied getting a balance which only reads to 2mg when Ic ould get one which reads down to 1mg, even if its less precise. But thats just because of my ignorance on the issue (which I hope you guys can take away cultivating me with some information about these balances, hehehe).


Well, thats more or less all I wanted to know, I would be very pleased if you could help me out a bit, as I am very indecise and I dont have the knowledge to make a correct dicision by myself.

Thanks in advance!

:)
 
nuke said:
(I'll note that all these cheap-o milligrams scales are fairly shitting compared to a proper analytical balance, though).
Click to expand...

Would you consider the Jennings VG-20 one of the cheap scales? I think its not as bad.

What about the Gem Pro 50 or the 150?



Thanks for the reply. :)
 
Burn it up said:
Would you consider the Jennings VG-20 one of the cheap scales? I think its not as bad.

What about the Gem Pro 50 or the 150?

Thanks for the reply. :)
Click to expand...

The Jenning balances are generally good. The Tanita 1210 has always had accurate, repeatable measurements within it's specifications. I wasn't fond of the GemPro 50 several years ago but the newer model (GemPro2) may be improved.
 
the new gem pro 250 is very very bad in my experience, i would recommend against buying it (whish someone had done the same for me) its made of thin cheep mcdonalds toy type plastic, it broke almost immediately everything about it is obviously cheep. my 15 dollar ebay scale works much better.
 
The which mg (±0.001g) scale thread

I'm looking to buy a decent, accurate and reliable mg scale with as little deviation as possible (i.e ±0.001g).

I'm willing to spend up $200 on such a scale and would be good if it could weigh >=20g (to reduce the error when weighing smaller amounts).

So far the primary candidate is this American weigh minipro-50.


Any reviews, suggestions or links would be greatly appreciated :)
 
Does anyone here have experience with both the Acculab VIC-123 & the MyWeigh GemPro 250?

From the information I've been able to scrape together from the big & dandy scale thread I'm leaning towards the GemPro 250, as apparently there's alot of drift with the Acculab =/.
 
Can I get a recommendation for a reliable scale accurate to 1-2 mg for under $200? I read through the thread but couldn't find a clear answer. One for around $100 would be great but I don't think that's gonna happen.
 
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