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$23.99
DEF Refractometer For Measuring Diesel Exhaust Fluid Concentration Of Diesel Engines
Amazon.com
$23.99
DEF Refractometer For Measuring Diesel Exhaust Fluid Concentration Of Diesel Engines
Amazon.com
$121.99
OTC 5025 Diesel Exhaust Fluid (DEF) Refractometer Kit - Includes Refractometer, Dropper, Lens Wipe Cloth, Instructions And Quick Start Guide,
Amazon.com
Free shipping
$121.99
OTC 5025 Diesel Exhaust Fluid (DEF) Refractometer Kit - Includes Refractometer, Dropper, Lens Wipe Cloth, Instructions And Quick Start Guide,
Amazon.com
$119.99
Urea And DEF Tester - Refractometer Digital Tester That Measures Accurately And Quickly - The Best Choice For Your Diesel Vehicle - Limited Time Offer
Amazon.com
Free shipping
$119.99
Urea And DEF Tester - Refractometer Digital Tester That Measures Accurately And Quickly - The Best Choice For Your Diesel Vehicle - Limited Time Offer
Amazon.com
$137.24
Central Tools Coolant/Battery/DEF Refractometer - Focusing Eye Piece, Knurled Handle, Model CEN3R401
Northern Tool
$137.24
Central Tools Coolant/Battery/DEF Refractometer - Focusing Eye Piece, Knurled Handle, Model CEN3R401
Northern Tool
$133.00
OTC 5025 DEF Refractometer
Mile-X Equipment, Inc.
$133.00
OTC 5025 DEF Refractometer
Mile-X Equipment, Inc.
$165.99
OTC Tools Diesel Exhaust Fluid Refractometer - 32.5% Urea Solution, 0.5% Graduations, Model 5025
Northern Tool
$165.99
OTC Tools Diesel Exhaust Fluid Refractometer - 32.5% Urea Solution, 0.5% Graduations, Model 5025
Northern Tool
$123.29
Test Products Intl. Refractometer: Battery Fluid/DEF/Ethylene Glycol/Propylene Glycol, Analog Model: 395
Grainger
$123.29
Test Products Intl. Refractometer: Battery Fluid/DEF/Ethylene Glycol/Propylene Glycol, Analog Model: 395
Grainger
$180.34
OTC UREA DEF Refractometer
Dealer Ship Closeouts
$180.34
OTC UREA DEF Refractometer
Dealer Ship Closeouts
$143.90
Diesel Exhaust Fluid (DEF) Refractometer Kit 5025
SIM Supply
$143.90
Diesel Exhaust Fluid (DEF) Refractometer Kit 5025
SIM Supply
$169.49
OTC Refractometer: DEF, +/-0.5% Accuracy, Auto, Analog, 0.005 Model: 5025
Grainger
$169.49
OTC Refractometer: DEF, +/-0.5% Accuracy, Auto, Analog, 0.005 Model: 5025
Grainger
$14.63
Performance Tool W16500 Professional DEF Tester (Disc Type DEF, Diesel Exhaust Fluid Tester)
Amazon.com
$14.63
Performance Tool W16500 Professional DEF Tester (Disc Type DEF, Diesel Exhaust Fluid Tester)
Amazon.com
$126.99
OTC DEF Refractometer Kit, Exhaust, 12In, 5025
Zoro.com
$126.99
OTC DEF Refractometer Kit, Exhaust, 12In, 5025
Zoro.com
$545.71
Reichert Refractometer: ARLA/AUS32-Diesel Exhaust Fluid/DEF, +/- 0.1% Accuracy, Auto, Digital, 0.001 Model: 13940013
Grainger
$545.71
Reichert Refractometer: ARLA/AUS32-Diesel Exhaust Fluid/DEF, +/- 0.1% Accuracy, Auto, Digital, 0.001 Model: 13940013
Grainger
$414.91
Misco PA202X-185-629, DEF-202 Digital Refractometer, Urea Scales - Urea-Based Diesel Exhaust Fluid (
Selectum
$414.91
Misco PA202X-185-629, DEF-202 Digital Refractometer, Urea Scales - Urea-Based Diesel Exhaust Fluid (
Selectum
$121.99
OTC Tools 5025: OTC DEF Refractometers
Summit Racing
$121.99
OTC Tools 5025: OTC DEF Refractometers
Summit Racing
$138.21
Vee Gee Scientific 43071, URX-60 Handheld DEF (Urea) Refractometer 0 To 60% Urea Silver/Green
Selectum
$138.21
Vee Gee Scientific 43071, URX-60 Handheld DEF (Urea) Refractometer 0 To 60% Urea Silver/Green
Selectum
$365.81
Vee Gee Scientific 48602, MDX-602 Digital DEF/Battery Acid Refractometer 4 Scales Black
Selectum
$365.81
Vee Gee Scientific 48602, MDX-602 Digital DEF/Battery Acid Refractometer 4 Scales Black
Selectum
$511.75
Waterproof Digital Refractometer - Diesel Exhaust Fluid
Sper Direct
$511.75
Waterproof Digital Refractometer - Diesel Exhaust Fluid
Sper Direct
$392.89
MDX-602 Digital Urea (DEF)/Battery Acid Refractometer, VEE GEE Scientific - 48602
The Lab Depot
$392.89
MDX-602 Digital Urea (DEF)/Battery Acid Refractometer, VEE GEE Scientific - 48602
The Lab Depot
$142.09
Handheld DEF (Urea) Refractometer, VEE GEE Scientific - 43071
The Lab Depot
$142.09
Handheld DEF (Urea) Refractometer, VEE GEE Scientific - 43071
The Lab Depot
$19.88
4-In-1 DEF Antifreeze Coolant Refractometer For Automobile Antifreeze System, Diesel Exhaust Fluid, Battery Acid And Windshield Washer Fluid
Walmart
Free shipping
$19.88
4-In-1 DEF Antifreeze Coolant Refractometer For Automobile Antifreeze System, Diesel Exhaust Fluid, Battery Acid And Windshield Washer Fluid
Walmart
$200.11
Diesel Exhaust Fluid (Def) Refractometer Kit Otc-5025
eBay
Free shipping
$200.11
Diesel Exhaust Fluid (Def) Refractometer Kit Otc-5025
eBay
$129.75
$186.11
Central Tools 3R401 Refractometer For Coolant Battery & DEF
Walmart
Free shipping
30% off
$129.75
$186.11
Central Tools 3R401 Refractometer For Coolant Battery & DEF
Walmart
$151.21
$274.92
Yieryi DR602 Digital Urea Refractometer DEF Tester Automotive Adblue Concentration Meter 0-51% With
Aliexpress
Free shipping
44% off
$151.21
$274.92
Yieryi DR602 Digital Urea Refractometer DEF Tester Automotive Adblue Concentration Meter 0-51% With
Aliexpress
$149.95
Otc Def Refractometer - Otc5025
Penn Tool Co
$149.95
Otc Def Refractometer - Otc5025
Penn Tool Co
$157.87
OTC-Bosch Automotive 5025 | Def Refractometer | Auto Tool World
AutoToolWorld.com
$157.87
OTC-Bosch Automotive 5025 | Def Refractometer | Auto Tool World
AutoToolWorld.com
$99.36
DEF/COOLANT REFRACTOMETER 3325
SIM Supply
$99.36
DEF/COOLANT REFRACTOMETER 3325
SIM Supply
$19.43
Yahhu 4-In-1 Antifreeze Coolant Refractometer With Precise Scale, Automotive DEF Refractometer With Automatic Temperature Compensation For Diesel Exha
Walmart
Free shipping
$19.43
Yahhu 4-In-1 Antifreeze Coolant Refractometer With Precise Scale, Automotive DEF Refractometer With Automatic Temperature Compensation For Diesel Exha
Walmart
$261.99
OTC/ OF SPX Otc Urea Def Refractometer, OTC5025
Zoro.com
$261.99
OTC/ OF SPX Otc Urea Def Refractometer, OTC5025
Zoro.com
$15.20
DEF Refractometer OTC 5025 - MT
mrstreak.com
$15.20
DEF Refractometer OTC 5025 - MT
mrstreak.com
$151.89
Central Tools Coolant/Battery/Def Refractometer - Ce3r401
Penn Tool Co
$151.89
Central Tools Coolant/Battery/Def Refractometer - Ce3r401
Penn Tool Co
$159.76
Kent-Moore EN-50422 | DEF Refractometer | Auto Tool World
AutoToolWorld.com
$159.76
Kent-Moore EN-50422 | DEF Refractometer | Auto Tool World
AutoToolWorld.com
$295.06
Heathrow Scientific 48602 Digital Urea (DEF) And Battery Acid Refractometer
MediDepot
$295.06
Heathrow Scientific 48602 Digital Urea (DEF) And Battery Acid Refractometer
MediDepot
$145.57
Otc Tools & Equipment Diesel Exhaust Fluid Refractometer | Otc Def Refractometer | Otc5025
FleetPride
$145.57
Otc Tools & Equipment Diesel Exhaust Fluid Refractometer | Otc Def Refractometer | Otc5025
FleetPride
$533.24
Vee Gee Refractometer: Battery Acid Specific Gravity/DEF/Refractive Index, Auto, Digital, 1.42 RI Model: 48602
Grainger
$533.24
Vee Gee Refractometer: Battery Acid Specific Gravity/DEF/Refractive Index, Auto, Digital, 1.42 RI Model: 48602
Grainger
$392.89
Digital Refractometer, MDX-602, DEF/Battery Acid, 4 Scales - 48602 486
LabCals.com
$392.89
Digital Refractometer, MDX-602, DEF/Battery Acid, 4 Scales - 48602 486
LabCals.com
How to Test the quality of your DEF ( Diesel Exhaust Fluid) with a refractometer.
5:30
How to Test the quality of your DEF ( Diesel Exhaust Fluid) with a refractometer.
9K viewsOct 7, 2022
YouTubeBig Rob
Using DEF Refractometer - OTC5025
2:35
Using DEF Refractometer - OTC5025
12.3K viewsSep 30, 2016
YouTubeEppy's Tool & Equipment
Diesel Exhaust Fluid Testing
2:13
Diesel Exhaust Fluid Testing
4.4K viewsMay 18, 2021
YouTubeKnow Your Parts
Testing BLUE DEF PLATINUM - 5 vs 21 months old with REFRACTOMETER + FLOATING DISC
8:33
Testing BLUE DEF PLATINUM - 5 vs 21 months old with REFRACTOMETER + FLOATING DISC
35.9K viewsDec 18, 2022
YouTubePm Tips
How to test your def fluid using a refractometer
1:01
How to test your def fluid using a refractometer
767 viewsFeb 22, 2024
YouTubeNoClass Garage
His Refractometer To Check DEF Quality...
0:39
His Refractometer To Check DEF Quality...
5.9K views5 months ago
YouTubeTekamo HD
How to Calibrate and Use a Refractometer for Beginners
2:57
How to Calibrate and Use a Refractometer for Beginners
11.8K viewsFeb 29, 2024
YouTubeTRADESAFE
3:33
Urea Def Refractometer | LABART
4.5K viewsApr 22, 2023
YouTubeLABART
1:23
Def fluid testing with OTC tool refractometer
1.2K views10 months ago
YouTubeSON OF MONTEZUMA
5:34
Checking DEF Urea Quality with LABART Refractometer
90 views6 months ago
YouTubeLABART
1:37
how to Check DEF Density using Refractometer.
20 views7 months ago
YouTubeABDUL AZEEM
1:36
Diesel Laptops Digital Diesel Exhaust Fluid (DEF) Refractometer Tester
2.4K viewsAug 9, 2018
YouTubeDiesel Laptops
1:01
This is how checked AdBlue quality using Hand Held DEF AdBlue Refractometer Tester
2.5K viewsFeb 27, 2025
YouTubeSanu Motors with Charlie
3:36
How a refractometer works - 3D ANIMATION structure, function, areas of application, calibration
42.5K viewsMar 29, 2022
YouTubeEXPLANATION-AVENUE - 3D Animations by Oliv…
10:15
Refractometers, How Do They Work? (And Should You Buy One?)
23.6K viewsJan 25, 2022
YouTubejkim makes
1:30
DEF Testing Made EASY! (OTC 5025)
1.3K viewsApr 23, 2025
YouTubeOTC TOOLS
3:47
How to use a Refractometer - QUICK GUIDE!
20.7K viewsJul 30, 2022
YouTubeBenham Brewing
1:22
How to Use a #refractometer to measure specific gravity
17.9K viewsMay 9, 2025
YouTubeThePenguinProf
6:11
🌟 -- How to Use a Refractometer (Abbe)
77.8K viewsOct 8, 2016
YouTubeSenpai Learn
2:34
How to Use a Refractometer to Measure Specific Gravity
630.2K viewsDec 12, 2012
YouTubeNorthernBrewerTV
2:50
How to calibrate a portable refractometer - step by step example
77.2K viewsMay 10, 2021
YouTubeecologicaltime
1:00
How to Use the Refractometer
5.3K viewsOct 3, 2024
YouTubeUnited States Gemological Institute
2:01
Diesel Exhaust Fluid (DEF) AdBlue Tester DEF-906
10.1K viewsNov 14, 2018
YouTubeThree-In-One
1:25
Hand refractometers
126.2K viewsMay 3, 2016
YouTubeAuxilab
1:54
How to use a digital refractometer
47.6K viewsJun 3, 2020
YouTubeScience etc
5:03
How to use a refractometer - step by step example shown using antifreeze and water.
16.4K viewsMay 10, 2021
YouTubeecologicaltime
7:52
How to Use a Refractometer
2.4K viewsSep 26, 2022
YouTubeQualiChem, Inc.
2:46
Refractometer
36.8K viewsNov 14, 2012
YouTubeSCCchemistry
2:21
What is a Refractometer? | How It Works in the Pharmaceutical Industry Explained! #Refractometer
222 viewsMay 20, 2025
YouTubeThe Pharma Show by seji
See more
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Shop def refractometer

Sponsored
About our ads
$23.99
DEF Refractometer For Measuring Diesel Exhaust Fluid Concentration Of Diesel Engines
Amazon.com
$23.99
DEF Refractometer For Measuring Diesel Exhaust Fluid Concentration Of Diesel Engines
Amazon.com
$121.99
OTC 5025 Diesel Exhaust Fluid (DEF) Refractometer Kit - Includes Refractometer, Dropper, Lens Wipe Cloth, Instructions And Quick Start Guide,
Amazon.com
Free shipping
$121.99
OTC 5025 Diesel Exhaust Fluid (DEF) Refractometer Kit - Includes Refractometer, Dropper, Lens Wipe Cloth, Instructions And Quick Start Guide,
Amazon.com
$119.99
Urea And DEF Tester - Refractometer Digital Tester That Measures Accurately And Quickly - The Best Choice For Your Diesel Vehicle - Limited Time Offer
Amazon.com
Free shipping
$119.99
Urea And DEF Tester - Refractometer Digital Tester That Measures Accurately And Quickly - The Best Choice For Your Diesel Vehicle - Limited Time Offer
Amazon.com
$137.24
Central Tools Coolant/Battery/DEF Refractometer - Focusing Eye Piece, Knurled Handle, Model CEN3R401
Northern Tool
$137.24
Central Tools Coolant/Battery/DEF Refractometer - Focusing Eye Piece, Knurled Handle, Model CEN3R401
Northern Tool
$133.00
OTC 5025 DEF Refractometer
Mile-X Equipment, Inc.
$133.00
OTC 5025 DEF Refractometer
Mile-X Equipment, Inc.
$165.99
OTC Tools Diesel Exhaust Fluid Refractometer - 32.5% Urea Solution, 0.5% Graduations, Model 5025
Northern Tool
$165.99
OTC Tools Diesel Exhaust Fluid Refractometer - 32.5% Urea Solution, 0.5% Graduations, Model 5025
Northern Tool
$123.29
Test Products Intl. Refractometer: Battery Fluid/DEF/Ethylene Glycol/Propylene Glycol, Analog Model: 395
Grainger
$123.29
Test Products Intl. Refractometer: Battery Fluid/DEF/Ethylene Glycol/Propylene Glycol, Analog Model: 395
Grainger
$180.34
OTC UREA DEF Refractometer
Dealer Ship Closeouts
$180.34
OTC UREA DEF Refractometer
Dealer Ship Closeouts
$143.90
Diesel Exhaust Fluid (DEF) Refractometer Kit 5025
SIM Supply
$143.90
Diesel Exhaust Fluid (DEF) Refractometer Kit 5025
SIM Supply
$169.49
OTC Refractometer: DEF, +/-0.5% Accuracy, Auto, Analog, 0.005 Model: 5025
Grainger
$169.49
OTC Refractometer: DEF, +/-0.5% Accuracy, Auto, Analog, 0.005 Model: 5025
Grainger
$14.63
Performance Tool W16500 Professional DEF Tester (Disc Type DEF, Diesel Exhaust Fluid Tester)
Amazon.com
$14.63
Performance Tool W16500 Professional DEF Tester (Disc Type DEF, Diesel Exhaust Fluid Tester)
Amazon.com
$126.99
OTC DEF Refractometer Kit, Exhaust, 12In, 5025
Zoro.com
$126.99
OTC DEF Refractometer Kit, Exhaust, 12In, 5025
Zoro.com
$545.71
Reichert Refractometer: ARLA/AUS32-Diesel Exhaust Fluid/DEF, +/- 0.1% Accuracy, Auto, Digital, 0.001 Model: 13940013
Grainger
$545.71
Reichert Refractometer: ARLA/AUS32-Diesel Exhaust Fluid/DEF, +/- 0.1% Accuracy, Auto, Digital, 0.001 Model: 13940013
Grainger
$414.91
Misco PA202X-185-629, DEF-202 Digital Refractometer, Urea Scales - Urea-Based Diesel Exhaust Fluid (
Selectum
$414.91
Misco PA202X-185-629, DEF-202 Digital Refractometer, Urea Scales - Urea-Based Diesel Exhaust Fluid (
Selectum
$121.99
OTC Tools 5025: OTC DEF Refractometers
Summit Racing
$121.99
OTC Tools 5025: OTC DEF Refractometers
Summit Racing
$138.21
Vee Gee Scientific 43071, URX-60 Handheld DEF (Urea) Refractometer 0 To 60% Urea Silver/Green
Selectum
$138.21
Vee Gee Scientific 43071, URX-60 Handheld DEF (Urea) Refractometer 0 To 60% Urea Silver/Green
Selectum
$365.81
Vee Gee Scientific 48602, MDX-602 Digital DEF/Battery Acid Refractometer 4 Scales Black
Selectum
$365.81
Vee Gee Scientific 48602, MDX-602 Digital DEF/Battery Acid Refractometer 4 Scales Black
Selectum
$511.75
Waterproof Digital Refractometer - Diesel Exhaust Fluid
Sper Direct
$511.75
Waterproof Digital Refractometer - Diesel Exhaust Fluid
Sper Direct