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Askar 50P F3.8 A portable, versatile quadruplet APO astrograph telescope

$2163.00~~$2163.00~~

5 sold

RisingCam imx294 10mp 4/3" sensor digital cooling astronomical telescope astronomy camera

$785.00~~$785.00~~

$Refractive Examination Equipment YZ-24B+11d Opht**halmic Retinoscope Streak$ $Refractive Examination Equipment YZ-24B+11d Opht**halmic Retinoscope Streak$

Refractive Examination Equipment YZ-24B+11d Opht**halmic Retinoscope Streak

$2752.25~~$2752.25~~

7% off

$Fable Brand More Accuracy Professional Refractive Index Optical Glass Equipment Portable Gemology Tools Gem Refractometer$ $Fable Brand More Accuracy Professional Refractive Index Optical Glass Equipment Portable Gemology Tools Gem Refractometer$

Fable Brand More Accuracy Professional Refractive Index Optical Glass Equipment Portable Gemology Tools Gem Refractometer

$3643.38~~$3917.61~~

14% off

$Refractómetro digital portátil de fabricante, rango 0-90% Brix, función ATC, para jugos y bebidas azucaradas$ $Refractómetro digital portátil de fabricante, rango 0-90% Brix, función ATC, para jugos y bebidas azucaradas$

Refractómetro digital portátil de fabricante, rango 0-90% Brix, función ATC, para jugos y bebidas azucaradas

$2421.75~~$2815.99~~

7% off

$High Accuracy 0.003 Handheld Diamond Gemstone Gem Refractometer with Refractive Index Fluid 1.79 with Built-in Battery$ $High Accuracy 0.003 Handheld Diamond Gemstone Gem Refractometer with Refractive Index Fluid 1.79 with Built-in Battery$

High Accuracy 0.003 Handheld Diamond Gemstone Gem Refractometer with Refractive Index Fluid 1.79 with Built-in Battery

$3643.38~~$3917.61~~

6% off

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

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

$290.93~~$308.78~~

7% off

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

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

$3808.74~~$4095.42~~

$Celestron AstroMaster 90EQ Telescope Refractor Telescope Professional Astronomical Telescope for Beginner Student stargazing$ $Celestron AstroMaster 90EQ Telescope Refractor Telescope Professional Astronomical Telescope for Beginner Student stargazing$

Celestron AstroMaster 90EQ Telescope Refractor Telescope Professional Astronomical Telescope for Beginner Student stargazing

$1999.00~~$1999.00~~

6% off

$Digital refractometer, gemstone refractometer, jewelry identification gemstone refractive index measuring instrument$ $Digital refractometer, gemstone refractometer, jewelry identification gemstone refractive index measuring instrument$

Digital refractometer, gemstone refractometer, jewelry identification gemstone refractive index measuring instrument

$2344.83~~$2494.50~~

Askar 60F Flat-Field A compact, ultra-portable, and powerful quadruplet self-flattened astrograph.

$3597.79~~$3597.79~~

4 sold

4% off

$HI96822 High-precision microcomputer sodium chloride refractive light analyzer (measuring seawater)$ $HI96822 High-precision microcomputer sodium chloride refractive light analyzer (measuring seawater)$

HI96822 High-precision microcomputer sodium chloride refractive light analyzer (measuring seawater)

$3374.52~~$3515.12~~

$2026-PAL-RI Digital Atago refractometer (polarimeter) hand held$ $2026-PAL-RI Digital Atago refractometer (polarimeter) hand held$

2026-PAL-RI Digital Atago refractometer (polarimeter) hand held "Pocket" auto Refractive Index 0.03%

$5034.57~~$5034.57~~

$Factory Direct Professional Gem Refractive Index Tester$ $Factory Direct Professional Gem Refractive Index Tester$

Factory Direct Professional Gem Refractive Index Tester

$5467.44~~$5467.44~~

Askar 71F Flat-Field Lightweight compact affordable quadruplet flat-field Astrograph for visual observing and astrophotography

$4719.10~~$4719.10~~

1 sold

$ZHANJING 5 Inch Professional Refractive Astronomical Telescope with Finder Scope and Tripod for Students Children$ $ZHANJING 5 Inch Professional Refractive Astronomical Telescope with Finder Scope and Tripod for Students Children$

ZHANJING 5 Inch Professional Refractive Astronomical Telescope with Finder Scope and Tripod for Students Children

$5712.50~~$5712.50~~

4% off

$optical instrument refraction chair low price ophthalmic unit$ $optical instrument refraction chair low price ophthalmic unit$

optical instrument refraction chair low price ophthalmic unit

$4490.24~~$4677.33~~

9% off

$PAL-RI Digital Atago refractometer (polarimeter) hand held$ $PAL-RI Digital Atago refractometer (polarimeter) hand held$

PAL-RI Digital Atago refractometer (polarimeter) hand held "Pocket" auto Refractive Index 0.03%

$5440.62~~$5978.70~~

5% off

$Professional Gemological Instrument Measuring Refractive Index Gemstone Refractometer With More Accuracy Of 0.002 Hot sales$ $Professional Gemological Instrument Measuring Refractive Index Gemstone Refractometer With More Accuracy Of 0.002 Hot sales$

Professional Gemological Instrument Measuring Refractive Index Gemstone Refractometer With More Accuracy Of 0.002 Hot sales

$3798.15~~$3998.05~~

4% off

$2026 Hot SellingTVV3000-70500 3.0MP USB digital refractive astronomical telescope$ $2026 Hot SellingTVV3000-70500 3.0MP USB digital refractive astronomical telescope$

2026 Hot SellingTVV3000-70500 3.0MP USB digital refractive astronomical telescope

$3528.03~~$3675.03~~

14% off

$Comprehensive Refractometer Ophthalmoscope Optical Shop Optometry Equipment Human Eye Refractive Inspection$ $Comprehensive Refractometer Ophthalmoscope Optical Shop Optometry Equipment Human Eye Refractive Inspection$

Comprehensive Refractometer Ophthalmoscope Optical Shop Optometry Equipment Human Eye Refractive Inspection

$4431.79~~$5153.24~~

8% off

$Monocular refractometer 2WAJ refractometer digital refractive index sugar concentration tester$ $Monocular refractometer 2WAJ refractometer digital refractive index sugar concentration tester$

Monocular refractometer 2WAJ refractometer digital refractive index sugar concentration tester

$2189.60~~$2380.00~~

53% off

$154mm Double Separation Lenses D154F750 D154F1200 Multilayer film Single-layer film Refractive Telescope accessories DIY$ $154mm Double Separation Lenses D154F750 D154F1200 Multilayer film Single-layer film Refractive Telescope accessories DIY$

154mm Double Separation Lenses D154F750 D154F1200 Multilayer film Single-layer film Refractive Telescope accessories DIY

$1441.02~~$3066.00~~

5% off

Qhyccd Qhy5iii 678M/C Planetaire Geleidingscamera Nabij-Infrarood Hoge Gevoeligheid Astronomische Fotografie

$2529.90~~$2663.05~~

1% off

$Digital Abbe Refractometer Gem Abbe Refractometer Jewelry Identification Gem Refractive Index Measuring Instrument Jade$ $Digital Abbe Refractometer Gem Abbe Refractometer Jewelry Identification Gem Refractive Index Measuring Instrument Jade$

Digital Abbe Refractometer Gem Abbe Refractometer Jewelry Identification Gem Refractive Index Measuring Instrument Jade

$5159.08~~$5211.19~~

4% off

$UTF-T4880Pro Adjustable Full-Frame Refraction Lens Frame Multi-Functional Genuine Optical Device for Precision Measurement$ $UTF-T4880Pro Adjustable Full-Frame Refraction Lens Frame Multi-Functional Genuine Optical Device for Precision Measurement$

UTF-T4880Pro Adjustable Full-Frame Refraction Lens Frame Multi-Functional Genuine Optical Device for Precision Measurement

$2044.80~~$2130.00~~

20% 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

$4132.77~~$5165.96~~

1 sold

7% off

$Professional Refractive Index for Jewelry and Gem With Testing Range of 1.35 - 1.85 With 0.02 ND Scale Division Refractometer$ $Professional Refractive Index for Jewelry and Gem With Testing Range of 1.35 - 1.85 With 0.02 ND Scale Division Refractometer$

Professional Refractive Index for Jewelry and Gem With Testing Range of 1.35 - 1.85 With 0.02 ND Scale Division Refractometer

$4119.59~~$4429.67~~

ToupTek G3M2210M USB3.0 Guide Planetary Camera SC2210 Mono Astronomical Photography

$1771.60~~$1771.60~~

2 sold

8% off

$BM-RE01 2WAJ Digital Auto Abbe Refractometer with 1.300-1.700 Refractive Index 0-95% Brix Range 0.0002 Accuracy$ $BM-RE01 2WAJ Digital Auto Abbe Refractometer with 1.300-1.700 Refractive Index 0-95% Brix Range 0.0002 Accuracy$

BM-RE01 2WAJ Digital Auto Abbe Refractometer with 1.300-1.700 Refractive Index 0-95% Brix Range 0.0002 Accuracy

$2933.51~~$3188.60~~

24% off

$154 Calibre F750/F1200mm Refractive Achromatic Objective DIY Homemade Astronomical Telescope$ $154 Calibre F750/F1200mm Refractive Achromatic Objective DIY Homemade Astronomical Telescope$

154 Calibre F750/F1200mm Refractive Achromatic Objective DIY Homemade Astronomical Telescope

$1424.03~~$1873.73~~

2 sold

13% off

Lens with Metal Holder 154F2250mm Multi-coated HD Dual Separation Objective Lens for Precision Type Astronomical Telescope

$702.09~~$807.00~~

8% off

Qhyccd QHY5III V2 Serie QHY5III200M USB3.0 Planetaire Gids Ster Camera Astronomische Telescoop Elektronisch Oculair

$2274.24~~$2472.00~~

1 sold

7% off

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

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

$4330.61~~$4656.57~~

10% off

$Gemological Refractometer 1.35 - 1.85 RI Refractive Index Built In LED Light Gem Refractometer$ $Gemological Refractometer 1.35 - 1.85 RI Refractive Index Built In LED Light Gem Refractometer$

Gemological Refractometer 1.35 - 1.85 RI Refractive Index Built In LED Light Gem Refractometer

$2829.31~~$3143.68~~

7% off

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

$3483.02~~$3745.18~~

Askar 50P F3.8 A portable, versatile quadruplet APO astrograph telescope

$2163.00 $2163.00

5 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

RisingCam imx294 10mp 4/3" sensor digital cooling astronomical telescope astronomy camera

$785.00 $785.00

Categories: Tools, Measurement & Analysis Instruments

Buy Now

$Refractive Examination Equipment YZ-24B+11d Opht**halmic Retinoscope Streak$ $Refractive Examination Equipment YZ-24B+11d Opht**halmic Retinoscope Streak$

Refractive Examination Equipment YZ-24B+11d Opht**halmic Retinoscope Streak

$2752.25 $2752.25

Categories: Tools, Measurement & Analysis Instruments

Buy Now

7% off

Fable Brand More Accuracy Professional Refractive Index Optical Glass Equipment Portable Gemology Tools Gem Refractometer

$3643.38 $3917.61

Categories: Tools, Measurement & Analysis Instruments

Buy Now

14% off

Refractómetro digital portátil de fabricante, rango 0-90% Brix, función ATC, para jugos y bebidas azucaradas

$2421.75 $2815.99

Categories: Tools, Measurement & Analysis Instruments

Buy Now

7% off

High Accuracy 0.003 Handheld Diamond Gemstone Gem Refractometer with Refractive Index Fluid 1.79 with Built-in Battery

$3643.38 $3917.61

Categories: Tools, Measurement & Analysis Instruments

Buy Now

6% off

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

$290.93 $308.78

Categories: Tools, Measurement & Analysis Instruments

Buy Now

7% off

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

$3808.74 $4095.42

Categories: Tools, Measurement & Analysis Instruments

Buy Now

Celestron AstroMaster 90EQ Telescope Refractor Telescope Professional Astronomical Telescope for Beginner Student stargazing

$1999.00 $1999.00

Categories: Tools, Measurement & Analysis Instruments

Buy Now

6% off

Digital refractometer, gemstone refractometer, jewelry identification gemstone refractive index measuring instrument

$2344.83 $2494.50

Categories: Tools, Measurement & Analysis Instruments

Buy Now

Askar 60F Flat-Field A compact, ultra-portable, and powerful quadruplet self-flattened astrograph.

$3597.79 $3597.79

4 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

4% off

HI96822 High-precision microcomputer sodium chloride refractive light analyzer (measuring seawater)

$3374.52 $3515.12

Categories: Tools, Measurement & Analysis Instruments

Buy Now

$2026-PAL-RI Digital Atago refractometer (polarimeter) hand held$ $2026-PAL-RI Digital Atago refractometer (polarimeter) hand held$

2026-PAL-RI Digital Atago refractometer (polarimeter) hand held "Pocket" auto Refractive Index 0.03%

$5034.57 $5034.57

Categories: Tools, Measurement & Analysis Instruments

Buy Now

$Factory Direct Professional Gem Refractive Index Tester$ $Factory Direct Professional Gem Refractive Index Tester$

Factory Direct Professional Gem Refractive Index Tester

$5467.44 $5467.44

Categories: Tools, Measurement & Analysis Instruments

Buy Now

Askar 71F Flat-Field Lightweight compact affordable quadruplet flat-field Astrograph for visual observing and astrophotography

$4719.10 $4719.10

1 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

ZHANJING 5 Inch Professional Refractive Astronomical Telescope with Finder Scope and Tripod for Students Children

$5712.50 $5712.50

Categories: Tools, Measurement & Analysis Instruments

Buy Now

4% off

$optical instrument refraction chair low price ophthalmic unit$ $optical instrument refraction chair low price ophthalmic unit$

optical instrument refraction chair low price ophthalmic unit

$4490.24 $4677.33

Categories: Tools, Measurement & Analysis Instruments

Buy Now

9% off

$PAL-RI Digital Atago refractometer (polarimeter) hand held$ $PAL-RI Digital Atago refractometer (polarimeter) hand held$

PAL-RI Digital Atago refractometer (polarimeter) hand held "Pocket" auto Refractive Index 0.03%

$5440.62 $5978.70

Categories: Tools, Measurement & Analysis Instruments

Buy Now

5% off

Professional Gemological Instrument Measuring Refractive Index Gemstone Refractometer With More Accuracy Of 0.002 Hot sales

$3798.15 $3998.05

Categories: Tools, Measurement & Analysis Instruments

Buy Now

4% off

$2026 Hot SellingTVV3000-70500 3.0MP USB digital refractive astronomical telescope$ $2026 Hot SellingTVV3000-70500 3.0MP USB digital refractive astronomical telescope$

2026 Hot SellingTVV3000-70500 3.0MP USB digital refractive astronomical telescope

$3528.03 $3675.03

Categories: Tools, Measurement & Analysis Instruments

Buy Now

14% off

Comprehensive Refractometer Ophthalmoscope Optical Shop Optometry Equipment Human Eye Refractive Inspection

$4431.79 $5153.24

Categories: Tools, Measurement & Analysis Instruments

Buy Now

8% off

$Monocular refractometer 2WAJ refractometer digital refractive index sugar concentration tester$ $Monocular refractometer 2WAJ refractometer digital refractive index sugar concentration tester$

Monocular refractometer 2WAJ refractometer digital refractive index sugar concentration tester

$2189.60 $2380.00

Categories: Tools, Measurement & Analysis Instruments

Buy Now

53% off

154mm Double Separation Lenses D154F750 D154F1200 Multilayer film Single-layer film Refractive Telescope accessories DIY

$1441.02 $3066.00

Categories: Tools, Measurement & Analysis Instruments

Buy Now

5% off

Qhyccd Qhy5iii 678M/C Planetaire Geleidingscamera Nabij-Infrarood Hoge Gevoeligheid Astronomische Fotografie

$2529.90 $2663.05

Categories: Tools, Measurement & Analysis Instruments

Buy Now

1% off

Digital Abbe Refractometer Gem Abbe Refractometer Jewelry Identification Gem Refractive Index Measuring Instrument Jade

$5159.08 $5211.19

Categories: Tools, Measurement & Analysis Instruments

Buy Now

4% off

UTF-T4880Pro Adjustable Full-Frame Refraction Lens Frame Multi-Functional Genuine Optical Device for Precision Measurement

$2044.80 $2130.00

Categories: Tools, Measurement & Analysis Instruments

Buy Now

20% off

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

$4132.77 $5165.96

1 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

7% off

Professional Refractive Index for Jewelry and Gem With Testing Range of 1.35 - 1.85 With 0.02 ND Scale Division Refractometer

$4119.59 $4429.67

Categories: Tools, Measurement & Analysis Instruments

Buy Now

ToupTek G3M2210M USB3.0 Guide Planetary Camera SC2210 Mono Astronomical Photography

$1771.60 $1771.60

2 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

8% off

BM-RE01 2WAJ Digital Auto Abbe Refractometer with 1.300-1.700 Refractive Index 0-95% Brix Range 0.0002 Accuracy

$2933.51 $3188.60

Categories: Tools, Measurement & Analysis Instruments

Buy Now

24% off

$154 Calibre F750/F1200mm Refractive Achromatic Objective DIY Homemade Astronomical Telescope$ $154 Calibre F750/F1200mm Refractive Achromatic Objective DIY Homemade Astronomical Telescope$

154 Calibre F750/F1200mm Refractive Achromatic Objective DIY Homemade Astronomical Telescope

$1424.03 $1873.73

2 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

13% off

Lens with Metal Holder 154F2250mm Multi-coated HD Dual Separation Objective Lens for Precision Type Astronomical Telescope

$702.09 $807.00

Categories: Tools, Measurement & Analysis Instruments

Buy Now

8% off

Qhyccd QHY5III V2 Serie QHY5III200M USB3.0 Planetaire Gids Ster Camera Astronomische Telescoop Elektronisch Oculair

$2274.24 $2472.00

1 sold

Categories: Tools, Measurement & Analysis Instruments

Buy Now

7% off

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

$4330.61 $4656.57

Categories: Tools, Measurement & Analysis Instruments

Buy Now

10% off

$Gemological Refractometer 1.35 - 1.85 RI Refractive Index Built In LED Light Gem Refractometer$ $Gemological Refractometer 1.35 - 1.85 RI Refractive Index Built In LED Light Gem Refractometer$