Handheld Refractometers

GAO Tek handheld refractometers are portable devices designed for on-the-go measurements of a substance’s refractive index. Our handheld refractometers come with several benefits: portability, rapid measurements, user-friendly, versatility, cost-effectiveness, battery-powered, on-site monitoring, immediate decision-making, and durable construction.
We have products in stock and can ship overnight within North America. Need any help? Fill out this Ask an Expert form or email us at sales@gaotek.com

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GAOTek Advanced Handheld Refractometer

SKU: GAOTek-HRFM-306
This advanced handheld refractometer has a spherical range of -12.0D to +6D, spherical degree interval of 0.5D, and a spherical tolerance of ± 0.25D.
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GAOTek Auto Focus Handheld Refractometer

SKU: GAOTek-HRFM-280
This auto focus handheld 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 Auto Handheld Refractometer

SKU: GAOTek-HRFM-213
This auto handheld refractometer has a brix range of 0.0% to 93.0 %, a temperature of (5°C to 45℃), and a brix accuracy of ±0.1%.
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GAOTek Auto Handheld Refractometer Keratometer

SKU: GAOTek-HRFM-266
This auto handheld refractometer keratometer has measuring range 6.5 mm to 9.5 mm, measuring time 0.03 s, and precision -0.05 mm to +0.05 mm.
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GAOTek Auto Handheld Refractometer Refractive

SKU: GAOTek-HRFM-218
This handheld refractometer refractive has refractive index range of 1.3306 to 1.5284, refractive index accuracy ±0.0003, and temperature 5°C to 45℃.
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GAOTek Auto Keratometer Handheld Refractometer

SKU: GAOTek-HRFM-250

This Auto keratometer Handheld Refractometer has a measuring range of 0.25 in to 0.37 in, a measuring time of 0.03 s, and a power of 500 mW.

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GAOTek Auto Refractometer Handheld With Vision Screener

SKU: GAOTek-HRFM-242

This Auto Refractometer Handheld With Vision Screener 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 Automated Handheld Refractometer

SKU: GAOTek-HRFM-246

This Automated Handheld Refractometer has a spherical power of -8.00D to +8.00D, an axis of 0° to 180°, and a pupil diameter of 50mm to 70mm.

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GAOTek Automatic Shooting Handheld Refractometer

SKU: GAOTek-HRFM-253
This automatic shooting handheld 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 Autorefractometer Hand Held

SKU: GAOTek-HRFM-216
This autorefractometer hand held has a sphere range of -10.0D to +10.0D, cylinder range of -0.5D~+5.0D, and axis of astigmatism range 1° to 180°.
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GAOTek Brix Acidity Handheld Refractometer

SKU: GAOTek-HRFM-282
This brix acidity handheld refractometer has measure range of 0 % to 53 %, measurement tempreture of 0 °C to 85 °C, and power of 12 V to 24 V.
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GAOTek Computerized Handheld Refractometer

SKU: GAOTek-HRFM-269
GAOTek computerized handheld refractometer can check the refractive error precisely for different groups of people using the ultrasonic ranging, cross line, flashing light and sound technology and then to find out the probably potential refractive problems.
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GAOTek Concentration Meter Handheld Refractometer

SKU: GAOTek-HRFM-226
This concentration meter handheld refractometer has a sample quantity of 0.3ml, a measurement time of 3s, and a resolution of 0.1% to 0.5%. 
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GAOTek Digital Handheld Refractometer

SKU: GAOTek-HRFM-214
This digital handheld refractometer has a sphere range of -10.0D to +10.0D, a cylinder tolerance of ±0.5D, and axis of astigmatism range of 1° to 180°.
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GAOTek Digital Instrument Handheld Refractometer

SKU: GAOTek-HRFM-230
This digital instrument handheld refractometer has a display of 7in touch screen, a measuring error of ±0.1%, and a power supply of 50Hz to 60Hz.   
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GAOTek Digital Kit Handheld Refractometer

SKU: GAOTek-HRFM-215
GAOTek digital kit handheld refractometer, the integral parameters of fruit, sugar and acidity can be measured with one device.
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GAOTek Digital Salt Handheld Refractometer

SKU: GAOTek-HRFM-283
This digital salt handheld refractometer has a range of 0.0% to 28%, a resolution of 0.1%, and a temperature range of 32 °F to 158 °F (0 °C to 70 °C).
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GAOTek Economic Handheld Refractometer

SKU: GAOTek-HRFM-281
This economic handheld refractometer has a spherical power of -8.00 D to +8.00 D, an axis range of 0° to 180°, and a charger of 5 V.
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GAOTek Effective Handheld Refractometer

SKU: GAOTek-HRFM-303
GAOTek effective handheld refractometer is an innovative wavefront refractometer that precisely measures refractive errors of patients from 6 months old through adults within just seconds.
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GAOTek Electronic Handheld Refractometer

SKU: GAOTek-HRFM-257
This electronic handheld refractometer has a cylinder axis of 0° to 180°, a measuring distance of 39.37 in (100 cm), and a measuring time of ＜15 sec.
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GAOTek Electronic Refractometer Handheld

SKU: GAOTek-HRFM-247

This Electronic 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 Eye Testing Handheld Refractometer

SKU: GAOTek-HRFM-267
This eye testing handheld refractometer has cylinder range of -5.0D to +5.0D, sphere range of -10.0D to +10.0D, and measurement time  ＜1 s/eye.
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GAOTek Eyes Appliance Handheld Refractometer

SKU: GAOTek-HRFM-278
This eyes appliance handheld refractometer has a sphere range of -10.0D to +10.0D, a sphere tolerance of ± 0.5D, and a cylinder tolerance of ± 0.5D.
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GAOTek Eyes Equipment Handheld Auto Refractometer

SKU: GAOTek-HRFM-260
This eyes equipment handheld auto refractometer has a sphere tolerance of ±0.5 D, a cylinder tolerance of ±0.5 D, and a battery voltage of 11.1 V.
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