Refractive Product Overview Buy Online at Sale Prices

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15% off

$40 41 42 43 44 46 48mm Doublet Glued Achromatic lens for Refractive Telescope DIY Accessories Objectives green red blue film$ $40 41 42 43 44 46 48mm Doublet Glued Achromatic lens for Refractive Telescope DIY Accessories Objectives green red blue film$

40 41 42 43 44 46 48mm Doublet Glued Achromatic lens for Refractive Telescope DIY Accessories Objectives green red blue film

$126.95~~$149.35~~

3 sold

50% off

$[NEWA64Z!】 Handheld Densimeter 0-53% Prism Refraction Sugar Refractometer Saccharimeter Tester Resolution$ $[NEWA64Z!】 Handheld Densimeter 0-53% Prism Refraction Sugar Refractometer Saccharimeter Tester Resolution$

[NEWA64Z!】 Handheld Densimeter 0-53% Prism Refraction Sugar Refractometer Saccharimeter Tester Resolution

$26.12~~$52.25~~

$Refractometer 0-32% Brix Beer Brewing Wort SG 1.000-1.120 Specific Gravity Meter Liquor Alcohol Concentration Fruit Wine Suger$ $Refractometer 0-32% Brix Beer Brewing Wort SG 1.000-1.120 Specific Gravity Meter Liquor Alcohol Concentration Fruit Wine Suger$

Refractometer 0-32% Brix Beer Brewing Wort SG 1.000-1.120 Specific Gravity Meter Liquor Alcohol Concentration Fruit Wine Suger

$11.09~~$11.09~~

19 sold

$Optical Glass Prism for Photography Refracted Light Teaching Triangular Prism 18cm/15cm/10cm/5cm Physics Science Experiment Tool$ $Optical Glass Prism for Photography Refracted Light Teaching Triangular Prism 18cm/15cm/10cm/5cm Physics Science Experiment Tool$

Optical Glass Prism for Photography Refracted Light Teaching Triangular Prism 18cm/15cm/10cm/5cm Physics Science Experiment Tool

$4.66~~$4.66~~

50% off

$70mm Doublet Aperture Refractive Glass Dual separation Achromatic Objective Lens DIY Refractor Astronomy Telescope Accessories$ $70mm Doublet Aperture Refractive Glass Dual separation Achromatic Objective Lens DIY Refractor Astronomy Telescope Accessories$

70mm Doublet Aperture Refractive Glass Dual separation Achromatic Objective Lens DIY Refractor Astronomy Telescope Accessories

$123.60~~$247.20~~

2 sold

$Bluetooth Coffee Refractometer Portable BTR-1000 Coffee Tester Coffee Concentration Meter ATC Refract Meter Brix TDS Detector$ $Bluetooth Coffee Refractometer Portable BTR-1000 Coffee Tester Coffee Concentration Meter ATC Refract Meter Brix TDS Detector$

Bluetooth Coffee Refractometer Portable BTR-1000 Coffee Tester Coffee Concentration Meter ATC Refract Meter Brix TDS Detector

$308.78~~$308.78~~

HeltecBMS 5A 12V 48V NCM/LFP/LTO Capacitor Active Equalizer Balancer 3S/4S/12S-16S with Switch for Battery BMS Accessories

$74.55~~$74.55~~

20 sold

17% off

$45 Degree Total Reflection Cylindrical Prism Optical Glass Physical Experiment Refraction Optical Equipment Horseshoe Lens$ $45 Degree Total Reflection Cylindrical Prism Optical Glass Physical Experiment Refraction Optical Equipment Horseshoe Lens$

45 Degree Total Reflection Cylindrical Prism Optical Glass Physical Experiment Refraction Optical Equipment Horseshoe Lens

$62.26~~$75.52~~

1 sold

50% off

$Handheld 0-90% Sugar Refractometer Brix Refratometro for Food Content Fruit Juice Liquids ATC Measurement Tool$ $Handheld 0-90% Sugar Refractometer Brix Refratometro for Food Content Fruit Juice Liquids ATC Measurement Tool$

Handheld 0-90% Sugar Refractometer Brix Refratometro for Food Content Fruit Juice Liquids ATC Measurement Tool

$104.32~~$208.64~~

4 sold

47% off

$2 in 1 Handheld Alcohol Brix Refractometer 0-25% Alcohol Beer Wine Concentration Meter 0-40% Sugar Refractometer Tester$ $2 in 1 Handheld Alcohol Brix Refractometer 0-25% Alcohol Beer Wine Concentration Meter 0-40% Sugar Refractometer Tester$

2 in 1 Handheld Alcohol Brix Refractometer 0-25% Alcohol Beer Wine Concentration Meter 0-40% Sugar Refractometer Tester

$75.56~~$144.10~~

2 sold

$2WAJ Abbe Refractometer 0-95% Brix Monocular Lab Refractive Index Meter$ $2WAJ Abbe Refractometer 0-95% Brix Monocular Lab Refractive Index Meter$

2WAJ Abbe Refractometer 0-95% Brix Monocular Lab Refractive Index Meter

$1825.00~~$1825.00~~

13% off

$50mm 60mm 70mm Series Doublet Lens 2pcs Set Separate Objective Lens Group for DIY Refractive Telescope Optical Glass Lens$ $50mm 60mm 70mm Series Doublet Lens 2pcs Set Separate Objective Lens Group for DIY Refractive Telescope Optical Glass Lens$

50mm 60mm 70mm Series Doublet Lens 2pcs Set Separate Objective Lens Group for DIY Refractive Telescope Optical Glass Lens

$14.79~~$17.00~~

8 sold

50% off

$20mm 21mm 22mm 24mm 26mm Refractive Glued Blue Green Purple Film Objective Lens Achromatic Lens Parallel Tube Telescope Diy$ $20mm 21mm 22mm 24mm 26mm Refractive Glued Blue Green Purple Film Objective Lens Achromatic Lens Parallel Tube Telescope Diy$

20mm 21mm 22mm 24mm 26mm Refractive Glued Blue Green Purple Film Objective Lens Achromatic Lens Parallel Tube Telescope Diy

$51.50~~$103.00~~

6 sold

72% off

$[NEW!A93G】 Handheld Densimeter 0-53% Prism Refraction Sugar Refractometer Saccharimeter Tester Resolution High Precision$ $[NEW!A93G】 Handheld Densimeter 0-53% Prism Refraction Sugar Refractometer Saccharimeter Tester Resolution High Precision$

[NEW!A93G】 Handheld Densimeter 0-53% Prism Refraction Sugar Refractometer Saccharimeter Tester Resolution High Precision

$30.24~~$108.00~~

50% off

$40 41 42 43 43.3 44 45.8 46 48mm Glued Objective Self-made Refraction Astronomical Telescope Accessories Broadband Coating$ $40 41 42 43 43.3 44 45.8 46 48mm Glued Objective Self-made Refraction Astronomical Telescope Accessories Broadband Coating$

40 41 42 43 43.3 44 45.8 46 48mm Glued Objective Self-made Refraction Astronomical Telescope Accessories Broadband Coating

$77.25~~$154.50~~

9 sold

49% off

$Educational Glass Spectral Refraction Prism, Light Physics Teaching & Photography Tool, Gift for Science Enthusiasts$ $Educational Glass Spectral Refraction Prism, Light Physics Teaching & Photography Tool, Gift for Science Enthusiasts$

Educational Glass Spectral Refraction Prism, Light Physics Teaching & Photography Tool, Gift for Science Enthusiasts

$35.90~~$71.79~~

1 sold

50% off

$Antifreeze Coolant Refractometer for Automobile Antifreeze System Diesel Exhaust Fluid Battery Acid and Windshield Washer Fluid$ $Antifreeze Coolant Refractometer for Automobile Antifreeze System Diesel Exhaust Fluid Battery Acid and Windshield Washer Fluid$

Antifreeze Coolant Refractometer for Automobile Antifreeze System Diesel Exhaust Fluid Battery Acid and Windshield Washer Fluid

$70.16~~$140.32~~

996 sold

45% off

3S 4S 6S 7S Balance Li-ion Lifepo4 LTO Lithium Battery 2A Capacitive Active Balancer Board Equalizer 22AWG For Battery Diy

$37.66~~$68.48~~

132 sold

50% off

$70mm Series Double Glued Separation Blue Film Achromatic Refraction Objective DIY Refraction Astronomical Telescope Accessories$ $70mm Series Double Glued Separation Blue Film Achromatic Refraction Objective DIY Refraction Astronomical Telescope Accessories$

70mm Series Double Glued Separation Blue Film Achromatic Refraction Objective DIY Refraction Astronomical Telescope Accessories

$159.65~~$319.30~~

13 sold

20% off

$Optical Retinoscopy Training Schematic Eye Model Practice Eye Tester for Retinoscopy Refraction Skills with Imitative Optics$ $Optical Retinoscopy Training Schematic Eye Model Practice Eye Tester for Retinoscopy Refraction Skills with Imitative Optics$

Optical Retinoscopy Training Schematic Eye Model Practice Eye Tester for Retinoscopy Refraction Skills with Imitative Optics

$251.73~~$314.66~~

4 sold

49% off

$Beer Wort Refractometer 0-32% Brix Sugar Concentration Meter Sugar Wine Beer Fruit Refractometer Homebrew Sugar Meter ATC$ $Beer Wort Refractometer 0-32% Brix Sugar Concentration Meter Sugar Wine Beer Fruit Refractometer Homebrew Sugar Meter ATC$

Beer Wort Refractometer 0-32% Brix Sugar Concentration Meter Sugar Wine Beer Fruit Refractometer Homebrew Sugar Meter ATC

$75.76~~$149.12~~

4 sold

39% off

$ALIM-0-53% Digital Refractometer Prism Refraction Sugar Refractometer Sugar Concentration Tester Saccharimeter Tester$ $ALIM-0-53% Digital Refractometer Prism Refraction Sugar Refractometer Sugar Concentration Tester Saccharimeter Tester$

ALIM-0-53% Digital Refractometer Prism Refraction Sugar Refractometer Sugar Concentration Tester Saccharimeter Tester

$26.96~~$44.19~~

16% off

$Objective Lens Astronomical Telescope Accessories Refractor Lens D93,f900Mm , Double separated Air Gap Multi-Layer Coating$ $Objective Lens Astronomical Telescope Accessories Refractor Lens D93,f900Mm , Double separated Air Gap Multi-Layer Coating$

Objective Lens Astronomical Telescope Accessories Refractor Lens D93,f900Mm , Double separated Air Gap Multi-Layer Coating

$57.10~~$67.98~~

6 sold

48% off

$Digital Alcohol Refractometer 0-80% High Accuracy LCD Display White Spirit Tester Beer Liquor Wine Refractometer Hydrometer$ $Digital Alcohol Refractometer 0-80% High Accuracy LCD Display White Spirit Tester Beer Liquor Wine Refractometer Hydrometer$

Digital Alcohol Refractometer 0-80% High Accuracy LCD Display White Spirit Tester Beer Liquor Wine Refractometer Hydrometer

$608.75~~$1172.09~~

5 sold

51% off

Bluetooth DSP Tuning Module BP1048B1 40 Band Equalizer Sound Card, TWS Stereo AUX DIY Audio BT Car Home Speaker Amplifier Preamp

$101.89~~$207.94~~

16 sold

45% off

Antifreeze Coolant Refractometer for Automobile Antifreeze System Diesel Exhaust Fluid Battery Acid and Windshield Washer Fluid

$88.51~~$160.92~~

45 sold

$Precision Ground Cross Cylinder Lens Set -0.25D to +0.5D for Professional Refraction and Astigmatism Testing$ $Precision Ground Cross Cylinder Lens Set -0.25D to +0.5D for Professional Refraction and Astigmatism Testing$

Precision Ground Cross Cylinder Lens Set -0.25D to +0.5D for Professional Refraction and Astigmatism Testing

$33.65~~$33.65~~

15 sold

45% off

$ABKW-High Precision Portable Refractive Index Tester Gem Refractometer Professional Gemstone Ldentification$ $ABKW-High Precision Portable Refractive Index Tester Gem Refractometer Professional Gemstone Ldentification$

ABKW-High Precision Portable Refractive Index Tester Gem Refractometer Professional Gemstone Ldentification

$62.28~~$113.23~~

Lithium Battery 1.5A Active Equalizer Balancer Board 6S 7S 8S 10S 13S 14S Energy Transfer Balance Li-Ion Lifepo4 Bms 24V 36V 48V

$43.47~~$43.47~~

520 sold

15% off

$Diameter154mm Large Aperture Dual Separation Lenses Refractive Astronomical Telescope Objective with Metal Base$ $Diameter154mm Large Aperture Dual Separation Lenses Refractive Astronomical Telescope Objective with Metal Base$

Diameter154mm Large Aperture Dual Separation Lenses Refractive Astronomical Telescope Objective with Metal Base

$4391.07~~$5165.96~~

1 sold

50% off

$1.30 ~ 1.81RI Gem Refractometer Ruby Jade Diamond Jewelry Refracto Meter Professional Appraisal Tools with Refracting Oil Light$ $1.30 ~ 1.81RI Gem Refractometer Ruby Jade Diamond Jewelry Refracto Meter Professional Appraisal Tools with Refracting Oil Light$

1.30 ~ 1.81RI Gem Refractometer Ruby Jade Diamond Jewelry Refracto Meter Professional Appraisal Tools with Refracting Oil Light

$368.09~~$736.18~~

14 sold

50% off

$82mm Telescope Double Separation Objective Lens 82F400 82F500 82F600 82F900 mm Achromatic Lens Refraction Astronomical Telescope$ $82mm Telescope Double Separation Objective Lens 82F400 82F500 82F600 82F900 mm Achromatic Lens Refraction Astronomical Telescope$

82mm Telescope Double Separation Objective Lens 82F400 82F500 82F600 82F900 mm Achromatic Lens Refraction Astronomical Telescope

$226.60~~$453.20~~

4 sold

30% off

$Gemstone Refractometer 1.30-1.81 RI Jewelry Testing Tool Emerald Zircon Double Refraction Meter With LED Flashlight$ $Gemstone Refractometer 1.30-1.81 RI Jewelry Testing Tool Emerald Zircon Double Refraction Meter With LED Flashlight$

Gemstone Refractometer 1.30-1.81 RI Jewelry Testing Tool Emerald Zircon Double Refraction Meter With LED Flashlight

$406.00~~$580.00~~

BSM 4S 150A LiFePO4 Lithium Battery Protection Board with Active Balance 12V Batterie High-Power Inverters Motorcycle Car Start

$127.41~~$127.41~~

27 sold

21% off

$Lazy Glasses, Clip-On Type, External-Mounted Refractive Myopia, Presbyopic, Lying Down and Watching Tv, Mobile Phone Artifact$ $Lazy Glasses, Clip-On Type, External-Mounted Refractive Myopia, Presbyopic, Lying Down and Watching Tv, Mobile Phone Artifact$

Lazy Glasses, Clip-On Type, External-Mounted Refractive Myopia, Presbyopic, Lying Down and Watching Tv, Mobile Phone Artifact

$165.50~~$209.50~~

12 sold

7% off

$Professional Gemological Instrument Measuring Refractive Index Gemstone Refractometer with More Accuracy of 0.002$ $Professional Gemological Instrument Measuring Refractive Index Gemstone Refractometer with More Accuracy of 0.002$