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Old 10-18-2005, 05:02 PM   #1
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decent refractometer?

Does anyone have this product? Is there a better one? The price looks good.

http://www.drsfostersmith.com/produc...1&N=2004&Nty=1

A six month warranty doesn't seem like much. Do they tend to break down?
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Old 10-18-2005, 05:29 PM   #2
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I have the same refractometer and I love it. I bought mine from these guys though.

http://www.aquaticeco.com/index.cfm/...id/931/cid/206
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Old 10-18-2005, 09:11 PM   #3
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Fluff, how long have you had yours? Should I be concerned about only a six month warranty?
Thanks,
D
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Old 10-18-2005, 09:13 PM   #4
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Hmm, I've had mine almost a year. I don't think I'd worry about the warrenty. They are pretty sturdy. Mines been dropped more than once.
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Old 10-18-2005, 09:19 PM   #5
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LOL @ Fluffs comment I have used Refractometers for my Machines at one of my companies for years with no problems, they are pretty much bullet proof.

Best Wishes!

Mark
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Old 10-18-2005, 09:20 PM   #6
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OK, thanks, sounds like it's family-friendly!!
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Old 10-18-2005, 09:33 PM   #7
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i dont have the same one but the plactic flap you put over the water keeps falling off mine and i dont know if i can fix it for much longer.
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Old 10-18-2005, 09:35 PM   #8
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had the same problem. Put a drop of super glue on one end of the pin that holds the flap on.
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Old 10-18-2005, 09:38 PM   #9
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Maybe I could find out which refractometer is anyone's favorite, and why. I'd like this to be a once-in-a-long-while purchase if possible. I know lots of you use them and must have a reason for the one you purchased.
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Old 10-18-2005, 09:48 PM   #10
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When I needed better accuracy I bought a beer hydrometer. I don't like refractometers b/c they can be thrown off by stuff in your water. Not that that is a huge issue but it makes me wary, being a Chem major I just don't like measuring SG with a device that does not directly measure gravity.
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Old 10-19-2005, 02:38 AM   #11
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Scottm.. they seem to be very inexpensive to be more accurate.
the range seems odd as well.. 0.980 to 1.130 seems to be common..
something like this http://www.williamsbrewing.com/HYDROMETER_P527C74.cfm
they are $5.90 at that site..
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Old 10-19-2005, 08:58 AM   #12
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I had one of those hydrometers. I didn't really like how I had fill a beaker with water to get an accurate reading. It was too big of a pain. Maybe I'm just lazy Oh, then my dog knocked it off the desk and broke it during a water change LOL.
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Old 10-19-2005, 09:53 AM   #13
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The glass tube hydrometers (Scottm's beer hydrometer) are very accurate... but also very delicate! My brother has broken one just about every other time we brew!

I've had my refractometer for over a year and have had no problems with it and rarely have to adjust the calibration. As long as you keep it clean after every use and keep it in a place it won't get knocked around between uses it should last a very long time. I wouldn't let a 6 month warrenty worry you, unless the product looks cheaply made.

Mine is a ... starts with an M... millwaukee? came with a foam lined case and adjustment screwdriver as well as a pipet, each with their own slot in the case. Everything goes back in the case after each use, i've never had any problems.
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Old 10-19-2005, 10:31 AM   #14
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Quote:
Originally Posted by BillyZ
came with a foam lined case and adjustment screwdriver as well as a pipet, each with their own slot in the case. Everything goes back in the case after each use, i've never had any problems.
So did mine (I assume you mean a hard case) and this is where it stays when not in use. I wouldn't worry.
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Old 10-19-2005, 01:07 PM   #15
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One more question:
Can anyone compare these two to the first one I posted? They're both more money.


http://www.thatpetplace.com/Products.../Itemdy00.aspx

http://www.thatpetplace.com/Products.../Itemdy00.aspx

Thanks, sorry to prolong the agony here!
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Old 10-19-2005, 02:47 PM   #16
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I don't see any major difference in the two. My refract. was only $45 at drsfostersmith.com - the 'generic' Premium Blue refract.

Really, there's only one option: built-in light, or not. I use the PC bulbs over the SW tank to light the prizm.

I don't like hydrometers. They are too easily skewed by tiny air bubbles stuck to the glass, and are calibrated for 65 degrees F so you have to adjust for the typical 10-15 degree increase in the tank's water temp.
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Old 10-19-2005, 03:03 PM   #17
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Scottm, you're not measuring "gravity". You're refracting light to give you a measure of specific gravity. Being a chem major, you know that's a ratio to the density of pure water.

Salt content gives a very linear relationship for that ratio. The instrument is more than accurate enough for aquarists, IMO.
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Old 10-19-2005, 03:19 PM   #18
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Before anyone orders that refractometer that was posted in the original message, this link was posted a week ago and I ordered it. It looks to be the same model (although I haven't really looked very hard ) and its cheaper.

http://www.drsfostersmith.com/produc...f=2020&subref=

Mine was delivered today, but haven't used it yet.

- Skins
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Old 10-19-2005, 03:47 PM   #19
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Wow!

Now that's a deal! Thanks, SkinnyPete! It's exactly the same model.

And thanks to everyone here for so much input!
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Old 10-19-2005, 08:44 PM   #20
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It seems to be very close to the same thing and price but I picked this one up on eBay for about $41 shipped.
http://cgi.ebay.com/Salt-Salinity-Re...QQcmdZViewItem
So Far So Good
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