| PREFAL6001 | Portable refractometer VOL 0-25% (0,2%), Baume 0-20 (0,2), Brix 0-40% (0,2%)
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| PREFAL7001 | Portable refractometer Brix 0-32% (0,2%), SG 1,000-1,120 (0,001)
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| PREFB20001 | Portable refractometer Brix 0-20% (0,1%)
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| PREFB32001 | Portable refractometer Brix 0-32% (0,1%)
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| PREFB50001 | Portable refractometer Brix 0-50% (0,5%)
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| PREFB82001 | Portable refractometer Brix 45-82% (0,5%)
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| PREFB92001 | Portable refractometer Brix 58-92% (0,2%)
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| PREFWN1001 | Portable refractometer Oe 0-140 (1 Oe), KMW(Babo) 0-25 (0,2 KMW), Mas Sacch 0-32% (0,2%)
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| PREFWN5001 | Portable refractometer Oe 0-190 (2 Oe), KMW(Babo) 0-38 (0,5 KMW),Brix 0-44% (0,5%)
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| PREFWN7001 | Portable refractometer Oe 30-140 (1 Oe), KMW(Babo) 0-25 (0,2 KMW),Brix 0-32% (0,2%)
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