Our rankings are generated through the algorithmic analysis of thousands of customer reviews about products, brands, merchant customer service levels, popularity trends, and more. We use advanced technology, including AI, to help process and organize this information at scale, supporting our analysis with greater speed and consistency. The rankings reflect our opinion and should be a good starting point for shopping.
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9 Best diagnostic test measurement tools of 2026
Save up to 26% off
Best Choice1
FOXWELL9.8Exceptional
FOXWELL Car Scanner NT604 Elite OBD2 Scanner ABS SRS Transmission
20% Off Limited Time Deal-
is discontinued by manufacturer:No
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product dimensions:7.68 x 3.54 x 1.18 inches
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manufacturer part number:NT604 ELITE
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item weight:2.79 pounds
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customer reviews:4.3 4.3 out of 5 stars 4,432 ratings 4.3 out of 5 stars
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Value for Money2
FOXWELL9.7Exceptional
FOXWELL NT301 OBD2 Scanner Live Data Professional Mechanic OBDII Diagnostic Code Reader Tool for Check Engine Light
20% Off Limited Time Deal 00:00:00
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3
VDIAGTOOL9.6Exceptional
VDIAGTOOL VD10 OBD2 Scanner Code Reader Car Diagnostic Tool Engine Fault Code Reader for Turn Off CEL with Freeze Frame/I/M Readiness for All OBDII Protocol Cars, OBD2 Scanner Diagnostic Tool
20% Off
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4
MOTOPOWER9.5Excellent
MOTOPOWER MP69033 Car OBD2 Scanner Code Reader Engine Fault Scanner CAN Diagnostic Scan Tool for All OBD II Protocol Cars Since 1996, Yellow
26% Off-
is discontinued by manufacturer:No
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product dimensions:2.75"L x 0.91"W x 6.02"H
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manufacturer part number:MP69033
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item weight:10.2 ounces
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customer reviews:4.6 4.6 out of 5 stars 48,090 ratings 4.6 out of 5 stars
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5
YAMHOHO9.3Excellent
Goniometer 12 inch 360° Clear Protractor Physical Therapy, for Medical Range of Motion Measurement Angle Ruler and Protractors Bulk for Classroom
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part number: YAMHOHO
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color: Transparency-12in
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item weight: 2.39 ounces
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customer reviews:4.7 4.7 out of 5 stars 75 ratings 4.7 out of 5 stars
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package dimensions: 11.06 x 2.28 x 0.28 inches
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6
BluSon9.2Excellent
BluSon YM319 OBD2 Scanner Diagnostic Tool with Battery Tester, Scan Tool
14% Off
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7
Ezyaid9.1Excellent
Ezyaid PD Ruler with Instruction Manual - Pupillary Distance Ruler for Pupil Distance Measuring, PD Measurement Tool for Prescription Eyeglasses, Include Eye Care Tips
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8
ASA TECHMED9.0Excellent
ASA TECHMED Protractor Goniometer Physical Therapy Measurement Tools Knee Flexion Joint Motion Testing Plastic Kit 360 Degree Range
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part number: AT14GONIKIT7
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color: Clear
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customer reviews:4.6 4.6 out of 5 stars 3 ratings 4.6 out of 5 stars
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asin:B09TLCWXQM
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date first available:February 28, 2022
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9
Prasacco8.9Very Good
Prasacco 12 Inch Goniometer, Transparent Orthopedic Angle Ruler Plastic Goniometer 360 Degree Goniometer Angle Protractor Goniometer for Body Measuring Tape Goniometer Protractor Ruler
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