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GAOTek Eyesight Test Handheld Refractometer

SKU: GAOTek-HRFM-244

This Eyesight Test Handheld Refractometer has a DC range of 0.00 D to 3.00 D, an axis range of 1° to 180°, and a pupil size of 4.0 mm to 9.00 mm.

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GAOTek Fast Speed Handheld Refractometer

SKU: GAOTek-HRFM-249

This Fast Speed Handheld Refractometer has a DC range of 0.00 D to 3.00 D, an axis range of 1° to 180°, and a pupil size of 4.0 mm to 9.00 mm.

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GAOTek Fastest Objective Handheld Refractometer

SKU: GAOTek-HRFM-276
This fastest objective handheld refractometer has a sphere range of -12.0 D to +12.0 D, a sphere tolerance of ± 0.5 D, and a cylinder tolerance of ± 0.5 D.
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GAOTek Gadget Handheld Refractometer

SKU: GAOTek-HRFM-229
This gadget handheld refractometer has a cylinder range of -5.0D to +5.0D, sphere tolerance of -12.0D to +12.0D, and astigmatism range of 1° to 180°. 
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GAOTek Handheld Automatic Refractometer

SKU: GAOTek-HRFM-221
This handheld automatic refractometer has brix of 0.0% to 95.0%, brix resolution 0.1% nD, and temperature measurement range  5°C to 40°C.
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GAOTek Handheld Device Refractometer

SKU: GAOTek-HRFM-227
This handheld device refractometer has a sphere range of -10.0D to +10.0D, a cylinder tolerance of ±0.5D, and a sphere tolerance of ±0.5D.
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GAOTek Handheld Digital Coffee Refractometer

SKU: GAOTek-HRFM-285
This handheld digital coffee refractometer has a brix resolution of 0.1 %, a power of 1.5 V, and an idle sample volume of 0.016 oz (0.5 ml).
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GAOTek Handheld Fruit Sugar Content Refractometer

SKU: GAOTek-HRFM-291
This Handheld Fruit Sugar Content Refractometer has a charging time of 2 hours, an output power of 12 V, and a brix measurement range of 5° to 30°.
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GAOTek Handheld Full Auto Refractometer

SKU: GAOTek-HRFM-264
This handheld full auto refractometer has a sphere range of -10.0 D to +10.0 D, a sphere tolerance of ± 0.5 D, and a cylinder tolerance of ± 0.5 D.
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GAOTek Handheld Manual Auto Refractometer

SKU: GAOTek-HRFM-298
This Handheld Manual Auto Refractometer has a spherical range of +6 D, a spherical wide interval of 0.5 D, and a spherical tolerance of ±0.25 D.
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GAOTek Handheld Mini Vision Screener Refractometer

SKU: GAOTek-RFM-114
GAOTek Handheld Mini Vision Screener Refractometer is a cutting-edge device that stands out as one of the fastest and most objective vision screeners available.
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GAOTek Handheld Ophthalmic Equipment Refractometer

SKU: GAOTek-HRFM-270
This handheld ophthalmic equipment refractometer has a DS accuracy of ±0.50 D, an axis resolution of 1°, and a timer per measurement of 1 s.
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GAOTek Handheld Pocket Refractometer

SKU: GAOTek-HRFM-217
This handheld pocket refractometer has a brix range of 0.0% to 93.0 %, accuracy of ±0.2 %, and a temperature compensation of (10 °C to 100 ℃).
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GAOTek Handheld Refractometer For Beer

SKU: GAOTek-HRFM-288
This handheld refractometer for beer has a measuring range of 0% to 45 5, a sugar brix accuracy of 0.2%, and a respond time of 3 sec.
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GAOTek Handheld Spot Vision Refractometer

SKU: GAOTek-HRFM-243

This Handheld Spot Vision Refractometer has a sphere tolerance of ±0.5 D, a cylinder range of -0.5 D to +5.0 D, and an axis range of 1° to 180°.

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GAOTek Handheld Top-Quality Refractometer

SKU: GAOTek-HRFM-274
This handheld top-quality refractometer has a sphere range of -12.0 D to +12.0 D, a sphere tolerance of ± 0.5 D, and a cylinder tolerance of ± 0.5 D.
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GAOTek Handheld Vision Refractometer

SKU: GAOTek-HRFM-228
This handheld vision refractometer has an axis range of 1° to 180°, a time per measurement of 1s, and a display of 5in touch screen.
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GAOTek High Precision Digital Refractometer

SKU: GAOTek-RFM-111
GAOTek digital refractometer is a digital high-precision optical instrument designed by the principle of refraction. It is small and beautiful, easy to use, and has an LCD large-screen digital display.
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GAOTek High Quality Handheld Auto Refractometer

SKU: GAOTek-HRFM-271
This high-quality handheld auto refractometer has a DS range of -7.50 D to +7.50 D, an axis resolution of 1°, and a timer per measurement of 1 s.
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GAOTek Hot Handheld Refractometer

SKU: GAOTek-HRFM-302
This hot handheld refractometer has a data storage of 16 G, a power supply of 100 V to 240 V, and a temperature accuracy of 0.02 ℃.
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GAOTek Latest Handheld Refractometer

SKU: GAOTek-HRFM-231
This latest handheld refractometer has a sphere range of -10.0D to +10.0D, cylinder range of -5.0D to +5.0D, and axis of astigmatism range 1° to 180°. 
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GAOTek Latest Modern Handheld Auto Refractometer

SKU: GAOTek-HRFM-308
This latest modern handheld auto refractometer has a sphere range of -10.0D to +10.0D, a sphere tolerance of ± 0.5D, and an axis range of 1° to 180°.
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GAOTek Lightweight Handheld Refractometer

SKU: GAOTek-HRFM-245

This Lightweight Handheld Refractometer has a visual acuity range of -0.4 to 0.5, power of 3 AAA batteries, and a spherical range of -12.0D to +6.0D.

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GAOTek Miniature Handheld Refractometer

SKU: GAOTek-HRFM-251
GAOTek miniature handheld refractometer has an innovative design that makes it easy to pour out and remove a sample, but difficult to spill the sample.
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