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$650nm 7 Lines DOE Diffractive Optical Elements Laser Module$ $650nm 7 Lines DOE Diffractive Optical Elements Laser Module$

650nm 7 Lines DOE Diffractive Optical Elements Laser Module

$2528.94~~$2528.94~~

$Flat-Field Holographic Concave Diffraction Gratings$ $Flat-Field Holographic Concave Diffraction Gratings$

Flat-Field Holographic Concave Diffraction Gratings

$2675.34~~$2675.34~~

16% off

$WYA-2W Binocular Abbe Refractometer Abbe Refractometer With Thermometer High-Precision Refractive Index$ $WYA-2W Binocular Abbe Refractometer Abbe Refractometer With Thermometer High-Precision Refractive Index$

WYA-2W Binocular Abbe Refractometer Abbe Refractometer With Thermometer High-Precision Refractive Index

$320.75~~$381.84~~

50% off

$Gold-plated grating 300 lines/mm Infrared reflection Central wavelength 3300nm Higher near-infrared diffraction efficiency$ $Gold-plated grating 300 lines/mm Infrared reflection Central wavelength 3300nm Higher near-infrared diffraction efficiency$

Gold-plated grating 300 lines/mm Infrared reflection Central wavelength 3300nm Higher near-infrared diffraction efficiency

$311.66~~$623.33~~

20% off

SkyMaster Pro ED 20x80 Astronomy Binoculars Large Aperture Long-Distance Viewing ED Glass Waterproof Durable Accessories

$2459.23~~$3074.04~~

2% off

$0.5 inch OLED high-definition resolution 1024 * 768 portable monocular head mounted display refractive adjustment$ $0.5 inch OLED high-definition resolution 1024 * 768 portable monocular head mounted display refractive adjustment$

0.5 inch OLED high-definition resolution 1024 * 768 portable monocular head mounted display refractive adjustment

$2646.00~~$2700.00~~

$Stainless steel ultra-high pressure pump head acid resistant, refractory, and alkali resistant commercial cleaning machine$ $Stainless steel ultra-high pressure pump head acid resistant, refractory, and alkali resistant commercial cleaning machine$

Stainless steel ultra-high pressure pump head acid resistant, refractory, and alkali resistant commercial cleaning machine

$2750.29~~$2750.29~~

$China Optometry Refraction Instrument Electric Ophthalmic Moto Table for Sale$ $China Optometry Refraction Instrument Electric Ophthalmic Moto Table for Sale$

China Optometry Refraction Instrument Electric Ophthalmic Moto Table for Sale

$2316.58~~$2316.58~~

5% off

$Stereoscopic Variable Prismatic Trainer Visual Training Tools Orthoptic for Refractive Errors Amblyopia Squint Stereo$ $Stereoscopic Variable Prismatic Trainer Visual Training Tools Orthoptic for Refractive Errors Amblyopia Squint Stereo$

Stereoscopic Variable Prismatic Trainer Visual Training Tools Orthoptic for Refractive Errors Amblyopia Squint Stereo

$2259.73~~$2378.66~~

50% off

$Gold-plated grating 50 lines/mm Infrared reflection Central wavelength 1200nm Higher near-infrared diffraction efficiency$ $Gold-plated grating 50 lines/mm Infrared reflection Central wavelength 1200nm Higher near-infrared diffraction efficiency$

Gold-plated grating 50 lines/mm Infrared reflection Central wavelength 1200nm Higher near-infrared diffraction efficiency

$330.00~~$660.00~~

10% off

$China Optometry Refraction Instrument Electric Ophthalmic Moto Table for Sale$ $China Optometry Refraction Instrument Electric Ophthalmic Moto Table for Sale$

China Optometry Refraction Instrument Electric Ophthalmic Moto Table for Sale

$2298.96~~$2554.40~~

Motorized DSLR Night Sky Tracking Mount Astrophotography Time-lapse Smartphone Control Lightweight and Portable Wide-field

$2422.00~~$2422.00~~

$80mm AstroMaster Refractor Telescope Fully-Coated Optics Adjustable Tripod Bonus Astronomy Software Package Moon Filter Eyepiece$ $80mm AstroMaster Refractor Telescope Fully-Coated Optics Adjustable Tripod Bonus Astronomy Software Package Moon Filter Eyepiece$

80mm AstroMaster Refractor Telescope Fully-Coated Optics Adjustable Tripod Bonus Astronomy Software Package Moon Filter Eyepiece

$2240.85~~$2240.85~~

$650x90mm Astronomical Refractor Telescope Adults & Beginners Fully Multi-Coated High Transmission Coatings EQ Mount 26X-130X$ $650x90mm Astronomical Refractor Telescope Adults & Beginners Fully Multi-Coated High Transmission Coatings EQ Mount 26X-130X$

650x90mm Astronomical Refractor Telescope Adults & Beginners Fully Multi-Coated High Transmission Coatings EQ Mount 26X-130X

$2375.92~~$2375.92~~

80mm Waterproof Dual Focusing Spotting Scope 20-60x Zoom HD Optics with Smartphone Adapter and Carry Case Hunting Wildlife Bird

$2330.42~~$2330.42~~

RisingCam Monochrome Ultra high sensitivity max 152fps 2.0mp imx462 sensor USB3.0 astronomical telescope guide camera

$269.00~~$269.00~~

50% off

$Diffraction gtating Plane reflection grating optical element Spectroscopic analysis grates 150 lines 30x30x6mm shine 1200nm$ $Diffraction gtating Plane reflection grating optical element Spectroscopic analysis grates 150 lines 30x30x6mm shine 1200nm$

Diffraction gtating Plane reflection grating optical element Spectroscopic analysis grates 150 lines 30x30x6mm shine 1200nm

$346.75~~$693.50~~

50% off

$Diffraction gtating Plane reflection grating optical element Spectroscopic analysis grates 66.6 lines 25x25x10mm double shine$ $Diffraction gtating Plane reflection grating optical element Spectroscopic analysis grates 66.6 lines 25x25x10mm double shine$

Diffraction gtating Plane reflection grating optical element Spectroscopic analysis grates 66.6 lines 25x25x10mm double shine

$312.91~~$625.82~~

10x60 Illuminated Reticle Finder Scope Guide Telescope 45° Angled Perfect Astrophotography Dual-Crosshair Eyepiece Sliding

$2505.52~~$2505.52~~

$Astronomy Telescope 90mm Aperture 900mm Refractor Digital Eyepiece Phone Adapter Wireless Remote Beginners Professionals Compact$ $Astronomy Telescope 90mm Aperture 900mm Refractor Digital Eyepiece Phone Adapter Wireless Remote Beginners Professionals Compact$

Astronomy Telescope 90mm Aperture 900mm Refractor Digital Eyepiece Phone Adapter Wireless Remote Beginners Professionals Compact

$2375.92~~$2375.92~~

50% off

$Diffraction gtating Plane reflection grating optical element Spectroscopic analysis grates 300 lines 45x45x10mm$ $Diffraction gtating Plane reflection grating optical element Spectroscopic analysis grates 300 lines 45x45x10mm$

Diffraction gtating Plane reflection grating optical element Spectroscopic analysis grates 300 lines 45x45x10mm

$372.30~~$744.60~~

$SV503 Telescope 70ED F6 Refractor OTA Bundle 1.25$ $SV503 Telescope 70ED F6 Refractor OTA Bundle 1.25$

SV503 Telescope 70ED F6 Refractor OTA Bundle 1.25" UHC Filter Light Pollution Reduction Sky Darkening Astrophotography Moon

$2591.92~~$2591.92~~

2" Telescope Eyepiece and Filter Kit 12 Piece Set with E-Lux Eyepieces and Barlow Lens Colored Planetary Filters Durable Case

$2519.64~~$2519.64~~

Stainless steel ultra-high pressure pump head acid resistant, refractory, and alkali resistant commercial cleaning machine

$2677.74~~$2677.74~~

Telescope Equatorial Wedge Astrophotography & Tracking

$2447.20~~$2447.20~~

50% off

$Gold-plated grating 1200 lines/mm Infrared reflection 25x25x6mm Central wavelength 750nm High diffraction efficiency$ $Gold-plated grating 1200 lines/mm Infrared reflection 25x25x6mm Central wavelength 750nm High diffraction efficiency$

Gold-plated grating 1200 lines/mm Infrared reflection 25x25x6mm Central wavelength 750nm High diffraction efficiency

$311.66~~$623.33~~

90mm Aperture 900mm Telescope Adults Astronomy AZ Tripod High Transmission Professional Magnification Kit Crosshair Finderscope

$2591.92~~$2591.92~~

$650nm 7 Lines DOE Diffractive Optical Elements Laser Module$ $650nm 7 Lines DOE Diffractive Optical Elements Laser Module$

650nm 7 Lines DOE Diffractive Optical Elements Laser Module

$2528.94 $2528.94

Categories: Tools, Measurement & Analysis Instruments

Buy Now

$Flat-Field Holographic Concave Diffraction Gratings$ $Flat-Field Holographic Concave Diffraction Gratings$

Flat-Field Holographic Concave Diffraction Gratings

$2675.34 $2675.34

Categories: Tools, Measurement & Analysis Instruments

Buy Now

16% off

WYA-2W Binocular Abbe Refractometer Abbe Refractometer With Thermometer High-Precision Refractive Index

$320.75 $381.84

Categories: Tools, Measurement & Analysis Instruments

Buy Now

50% off

Gold-plated grating 300 lines/mm Infrared reflection Central wavelength 3300nm Higher near-infrared diffraction efficiency

$311.66 $623.33

Categories: Tools, Measurement & Analysis Instruments

Buy Now

20% off

SkyMaster Pro ED 20x80 Astronomy Binoculars Large Aperture Long-Distance Viewing ED Glass Waterproof Durable Accessories

$2459.23 $3074.04

Categories: Tools, Measurement & Analysis Instruments

Buy Now

2% off

0.5 inch OLED high-definition resolution 1024 * 768 portable monocular head mounted display refractive adjustment

$2646.00 $2700.00

Categories: Tools, Measurement & Analysis Instruments

Buy Now

Stainless steel ultra-high pressure pump head acid resistant, refractory, and alkali resistant commercial cleaning machine

$2750.29 $2750.29

Categories: Tools, Measurement & Analysis Instruments

Buy Now

$China Optometry Refraction Instrument Electric Ophthalmic Moto Table for Sale$ $China Optometry Refraction Instrument Electric Ophthalmic Moto Table for Sale$

China Optometry Refraction Instrument Electric Ophthalmic Moto Table for Sale

$2316.58 $2316.58

Categories: Tools, Measurement & Analysis Instruments

Buy Now

5% off

Stereoscopic Variable Prismatic Trainer Visual Training Tools Orthoptic for Refractive Errors Amblyopia Squint Stereo

$2259.73 $2378.66

Categories: Tools, Measurement & Analysis Instruments

Buy Now

50% off

Gold-plated grating 50 lines/mm Infrared reflection Central wavelength 1200nm Higher near-infrared diffraction efficiency

$330.00 $660.00

Categories: Tools, Measurement & Analysis Instruments

Buy Now

10% off

$China Optometry Refraction Instrument Electric Ophthalmic Moto Table for Sale$ $China Optometry Refraction Instrument Electric Ophthalmic Moto Table for Sale$