| Hand-Held Refractometer N-1α |
Digital Refractometer "Palette" PR-1 |
| Hand-Held Refractometer N-1E |
Digital Refractometer "Palette" PR-2 |
| Hand-Held Refractometer N-50E |
Digital Refractometer "Palette" PR-101 |
| Hand-Held Refractometer ATC-1 |
Digital Refractometer "Palette" PR-201 |
| Hand-Held Refractometer ATC-1E |
Digital Refractometer "Palette" PR-100 |
| Hand-Held Refractometer ATC-20E |
Digital Refractometer "Palette" PR-200 |
| Hand-Held Refractometer N1 |
Digital Refractometers DBX-55 |
| Hand-Held Refractometer N10 |
Digital Refractometers DBX-55A |
| Hand-Held Refractometer N20 |
Digital Refractometers RX-1000 |
| Hand-Held Refractometer N-10E |
Digital Refractometers RX-3000 |
| Hand-Held Refractometer N-20E |
Abbe Refractometer NAR-1T |
| Hand-Held Refractometer H-50 |
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