L.E.S. Guest
on
29 ديسمبر 2009, 9:04 PM
perfect reading
I am a beginner and for beginners it is the perfect item... but, if you want a perfect reading, you need to buy an refractometer...
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jeremy Guest
on
20 مايو 2009, 8:36 AM
Prefer a Refractometer
these devices are just ok, if you want a true accurate reading, you will have to buy a refractometer.
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