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48% off

$Handheld 0~40% Sugar Refractometer Household 0~25% Alcohol Wine Refractometer Beer Brix Concentration Detector Wort Tester$ $Handheld 0~40% Sugar Refractometer Household 0~25% Alcohol Wine Refractometer Beer Brix Concentration Detector Wort Tester$

Handheld 0~40% Sugar Refractometer Household 0~25% Alcohol Wine Refractometer Beer Brix Concentration Detector Wort Tester

$72.81~~$140.01~~

375 sold

52% off

$Handheld Sugar Refractometer Sugar Concentration Meter Densimeter 0-32% Brix Saccharimeter Tester Fruits Grapes ATC$ $Handheld Sugar Refractometer Sugar Concentration Meter Densimeter 0-32% Brix Saccharimeter Tester Fruits Grapes ATC$

Handheld Sugar Refractometer Sugar Concentration Meter Densimeter 0-32% Brix Saccharimeter Tester Fruits Grapes ATC

$69.00~~$143.76~~

375 sold

50% off

10Pcs Dia 25mm BiConvex Clear Lens Convex Glass Lens For Google Cardboard Box 3D VR Glasses Magnifying Lens Focal Length 45mm

$30.64~~$61.28~~

39 sold

50% off

$Handheld Beer Brix Refractometer Sugar Concentration Meter 0-32% Brix 1.000-1.120 Sugar Tester Brewing Wine Fruits Grapes$ $Handheld Beer Brix Refractometer Sugar Concentration Meter 0-32% Brix 1.000-1.120 Sugar Tester Brewing Wine Fruits Grapes$

Handheld Beer Brix Refractometer Sugar Concentration Meter 0-32% Brix 1.000-1.120 Sugar Tester Brewing Wine Fruits Grapes

$70.98~~$143.36~~

54 sold

52% off

3030150Mm Triangular Crystal Prism, Optical Glass Prisma, Prisms Photography Filter, Spectrum Physics Prisme for Photo

$6.62~~$13.79~~

21 sold

33% off

$Yieryi 0~40% Brix 0~25% Alcohol Double Scale Wine Refractometer Handheld Sugar Concentration Meter ATC$ $Yieryi 0~40% Brix 0~25% Alcohol Double Scale Wine Refractometer Handheld Sugar Concentration Meter ATC$

Yieryi 0~40% Brix 0~25% Alcohol Double Scale Wine Refractometer Handheld Sugar Concentration Meter ATC

$11.56~~$17.25~~

45 sold

53% off

1 pcs50X40mm 30X42mm Transmittance70%, Reflectance30% Glass Telephoto Beam Splitter Glass Plate Prism Teleprompter

$79.67~~$169.52~~

17 sold

47% off

$4 in 1 Hand Held Car Refractometer Vehicle 30-35% Adblue Fluid Glycol Urea Tester Battery Antifreeze with ATC$ $4 in 1 Hand Held Car Refractometer Vehicle 30-35% Adblue Fluid Glycol Urea Tester Battery Antifreeze with ATC$

4 in 1 Hand Held Car Refractometer Vehicle 30-35% Adblue Fluid Glycol Urea Tester Battery Antifreeze with ATC

$71.79~~$137.67~~

400 sold

51% off

$Handheld Alcohol Sugar Refractometer Tester Wine Concentration Meter Densitometer 0-25% Alcohol Beer 0-40% Brix Grapes$ $Handheld Alcohol Sugar Refractometer Tester Wine Concentration Meter Densitometer 0-25% Alcohol Beer 0-40% Brix Grapes$

Handheld Alcohol Sugar Refractometer Tester Wine Concentration Meter Densitometer 0-25% Alcohol Beer 0-40% Brix Grapes

$71.93~~$147.04~~

94 sold

$Yieryi 0-40% AdBlue Diesel Exhaust Fluid (DEF) Urea Concentration Refractometer - AUS 32 Car Refractometer$ $Yieryi 0-40% AdBlue Diesel Exhaust Fluid (DEF) Urea Concentration Refractometer - AUS 32 Car Refractometer$

Yieryi 0-40% AdBlue Diesel Exhaust Fluid (DEF) Urea Concentration Refractometer - AUS 32 Car Refractometer

$15.88~~$15.88~~

44 sold

38% off

$Yieryi 4-In-1 Antifreeze Refractometer With ATC Engine Fluid Glycol Point Tester For Car Battery Adblue Detergent Handheld Meter$ $Yieryi 4-In-1 Antifreeze Refractometer With ATC Engine Fluid Glycol Point Tester For Car Battery Adblue Detergent Handheld Meter$

Yieryi 4-In-1 Antifreeze Refractometer With ATC Engine Fluid Glycol Point Tester For Car Battery Adblue Detergent Handheld Meter

$19.75~~$31.85~~

5 sold

50% off

$Handheld 0-40% Sugar Refractometer Brix 0~25% Alcohol Tester With Retail Box For Wort Beer Wine Grape Sugar with ATC$ $Handheld 0-40% Sugar Refractometer Brix 0~25% Alcohol Tester With Retail Box For Wort Beer Wine Grape Sugar with ATC$

Handheld 0-40% Sugar Refractometer Brix 0~25% Alcohol Tester With Retail Box For Wort Beer Wine Grape Sugar with ATC

$10.33~~$20.66~~

7 sold

53% off

$4 in 1 Car Antifreeze Refractometer Engine Battery Fluid Glycol Adblue Refractometer Glass Freezing Point Water Coolant Tester$ $4 in 1 Car Antifreeze Refractometer Engine Battery Fluid Glycol Adblue Refractometer Glass Freezing Point Water Coolant Tester$

4 in 1 Car Antifreeze Refractometer Engine Battery Fluid Glycol Adblue Refractometer Glass Freezing Point Water Coolant Tester

$75.67~~$160.99~~

169 sold

47% off

$Handheld Brix Refractometer Sugar Concentration Meter 0-90% Sucrose Densimeter for Honey Tester Fruits Juice Wine Refractometer$ $Handheld Brix Refractometer Sugar Concentration Meter 0-90% Sucrose Densimeter for Honey Tester Fruits Juice Wine Refractometer$

Handheld Brix Refractometer Sugar Concentration Meter 0-90% Sucrose Densimeter for Honey Tester Fruits Juice Wine Refractometer

$98.52~~$187.87~~

7 sold

49% off

Photography Triangular Prism 25x25x80mm Rainbow Crystal Glass Effects Filter for Studio Shooting Dispersion

$36.49~~$72.06~~

241 sold

Kids Physics Stem Science Toys Glass Reflecting Triangular Color Prism Learning Educational Toys for Children Light Spectrum

$4.17~~$4.17~~

878 sold

Optical Glass X-cube Dichroic Cube Design Cube Prism RGB Combiner Splitter Educational Gift Class Physics Educational Toy

$5.09~~$5.09~~

191 sold

$ATC Sugar Refractometer 0-40% Brix 0-25% Alcohol Meter for Moonshine Household Brewing Wine Sugar Fruit Sweetness Alcoholmeter$ $ATC Sugar Refractometer 0-40% Brix 0-25% Alcohol Meter for Moonshine Household Brewing Wine Sugar Fruit Sweetness Alcoholmeter$

ATC Sugar Refractometer 0-40% Brix 0-25% Alcohol Meter for Moonshine Household Brewing Wine Sugar Fruit Sweetness Alcoholmeter

$10.05~~$10.05~~

19 sold

50% off

Plano Concave Lens K9 Glass Optical Lens Diameter 15mm 26mm for Laser Prism Microscope Projector

$61.06~~$122.12~~

3 sold

33% off

$50X40mm PET Holographic Trasmission Diffraction Grating Spectral Spectroscopy Teaching Demonstration 50 100 300 500 600 Lines$ $50X40mm PET Holographic Trasmission Diffraction Grating Spectral Spectroscopy Teaching Demonstration 50 100 300 500 600 Lines$

50X40mm PET Holographic Trasmission Diffraction Grating Spectral Spectroscopy Teaching Demonstration 50 100 300 500 600 Lines

$132.91~~$198.37~~

9 sold

$YAGO Homebrew Hydrometer Beer Wine Refractometer Brix 0-32% SG Wort 1.000-1.120 Dual Scale Optical Tester for Brewing$ $YAGO Homebrew Hydrometer Beer Wine Refractometer Brix 0-32% SG Wort 1.000-1.120 Dual Scale Optical Tester for Brewing$

YAGO Homebrew Hydrometer Beer Wine Refractometer Brix 0-32% SG Wort 1.000-1.120 Dual Scale Optical Tester for Brewing

$16.94~~$16.94~~

2 sold

50% off

$3 in 1 Handheld Refractometer 58-90% Honey Refractometer 12-27% Water Content Detector 38-43°Baume Tester ATC Beekeeping Tester$ $3 in 1 Handheld Refractometer 58-90% Honey Refractometer 12-27% Water Content Detector 38-43°Baume Tester ATC Beekeeping Tester$

3 in 1 Handheld Refractometer 58-90% Honey Refractometer 12-27% Water Content Detector 38-43°Baume Tester ATC Beekeeping Tester

$85.61~~$171.23~~

73 sold

51% off

$Hand Held Alcohol Refractometer 0-80% ATC Alcohol Meter Spirit Alcoholometer Content Measurement Wine Tester$ $Hand Held Alcohol Refractometer 0-80% ATC Alcohol Meter Spirit Alcoholometer Content Measurement Wine Tester$

Hand Held Alcohol Refractometer 0-80% ATC Alcohol Meter Spirit Alcoholometer Content Measurement Wine Tester

$78.58~~$160.37~~

21 sold

20% off

$5 PCS 50X50mm Interference Diffraction Grating Set Single Double Triple Slit Round Hole Grid Optical Experimental Instrument$ $5 PCS 50X50mm Interference Diffraction Grating Set Single Double Triple Slit Round Hole Grid Optical Experimental Instrument$

5 PCS 50X50mm Interference Diffraction Grating Set Single Double Triple Slit Round Hole Grid Optical Experimental Instrument

$69.87~~$87.34~~

38 sold

31% off

1PC 57421.1mm 50%Transflective Glass Telephoto Beamsplitter Galss Plate Prism Teleprompter Transmission

$10.34~~$14.99~~

12 sold

$0-10% Brix Refractometer with Adjustable Focus Simple Calibration ATC Rubberized Grip Sugar Content Solutions Traditional Tool$ $0-10% Brix Refractometer with Adjustable Focus Simple Calibration ATC Rubberized Grip Sugar Content Solutions Traditional Tool$

0-10% Brix Refractometer with Adjustable Focus Simple Calibration ATC Rubberized Grip Sugar Content Solutions Traditional Tool

$8.90~~$8.90~~

4 sold

50% off

5pcs 25x20mm First Reflecting Surface Reflector Square Optical Front Surface Mirror DIY Scanner Projector Mirror Accessories

$28.84~~$57.68~~

11 sold

40% off

$Yieryi 0-10% Brix Sugar Refractometer With ATC Accuracy 0.1% Low-Concentrated Sugar Content Tester For Fruit Juice Vegetable$ $Yieryi 0-10% Brix Sugar Refractometer With ATC Accuracy 0.1% Low-Concentrated Sugar Content Tester For Fruit Juice Vegetable$

Yieryi 0-10% Brix Sugar Refractometer With ATC Accuracy 0.1% Low-Concentrated Sugar Content Tester For Fruit Juice Vegetable

$17.33~~$28.88~~

2 sold

70% off

$Digital Rechargeable Refractometer 0-53% For Brix Glucose Meter With Backlit LCD For Winemaking Coffee Brewing Fruit Sugar Testi$ $Digital Rechargeable Refractometer 0-53% For Brix Glucose Meter With Backlit LCD For Winemaking Coffee Brewing Fruit Sugar Testi$

Digital Rechargeable Refractometer 0-53% For Brix Glucose Meter With Backlit LCD For Winemaking Coffee Brewing Fruit Sugar Testi

$123.32~~$411.07~~

5 sold

50% off

$Hot New Shockproof Packaging Hand-held 0-80% Alcohol Refractometer Alcohol Concentration Meter Liquor Alcohol Tester$ $Hot New Shockproof Packaging Hand-held 0-80% Alcohol Refractometer Alcohol Concentration Meter Liquor Alcohol Tester$

Hot New Shockproof Packaging Hand-held 0-80% Alcohol Refractometer Alcohol Concentration Meter Liquor Alcohol Tester

$115.30~~$230.61~~

1 sold

$RZ Human Clinical Urine Protein Tester 0-12g/dl Serum Protein Urine SG RI Tri Scale ATC Refractometer$ $RZ Human Clinical Urine Protein Tester 0-12g/dl Serum Protein Urine SG RI Tri Scale ATC Refractometer$

RZ Human Clinical Urine Protein Tester 0-12g/dl Serum Protein Urine SG RI Tri Scale ATC Refractometer

$11.67~~$11.67~~

9 sold

50% off

$Holographic diffraction grating 36x38mm 600 lines 1mm grates Optical teaching experiment Transmission grating No shell$ $Holographic diffraction grating 36x38mm 600 lines 1mm grates Optical teaching experiment Transmission grating No shell$

Holographic diffraction grating 36x38mm 600 lines 1mm grates Optical teaching experiment Transmission grating No shell

$7.20~~$14.40~~

15 sold

Optical First Surface Mirror for Projectors 35x35mm Diameter 1.1mm Thickness High Reflectivity First Surface Mirror Reflector

$48.09~~$48.09~~

36 sold

50% off

$Holographic diffraction grating 50-2400lines/mm Glass engraving 20x10mm Ultra high precision optical instrument physical optics$ $Holographic diffraction grating 50-2400lines/mm Glass engraving 20x10mm Ultra high precision optical instrument physical optics$

Holographic diffraction grating 50-2400lines/mm Glass engraving 20x10mm Ultra high precision optical instrument physical optics

$12.80~~$25.60~~

40 sold

52% off

$Handheld Wine Refractometer Tester Alcohol Sugar Concentration Meter Densitometer 0-25% Alcohol Beer 0-40% Brix Grapes Testing$ $Handheld Wine Refractometer Tester Alcohol Sugar Concentration Meter Densitometer 0-25% Alcohol Beer 0-40% Brix Grapes Testing$