Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
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10 Best diagnostic test measurement tools of 2026
Save up to 29% off
Best Choice1
FOXWELL9.8Exceptional
743+
bought this week
FOXWELL Car Scanner NT604 Elite OBD2 Scanner ABS SRS Transmission, Check Engine Code Reader for Cars and Trucks, Diagnostic Scan Tool with SRS Airbag, Automotive Diagnostic Tool with Live Data
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
9.7Exceptional
GEARWRENCH Professional Bi-Directional Diagnostic Scan Tool | GWSMARTBT
29% Off-
is discontinued by manufacturer:N/A
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product dimensions:3.4 x 2.1 x 0.9 inches
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manufacturer part number:GWSMARTBT
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item weight:3.87 ounces
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customer reviews:4.0 4.0 out of 5 stars 476 ratings 4.0 out of 5 stars
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3
YAMHOHO9.5Excellent
Goniometer 12 inch 360° Clear Protractor Physical Therapy, for Medical Range of Motion Measurement Angle Ruler and Protractors Bulk for Classroom
18% Off-
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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4
Ezyaid9.4Excellent
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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5
VDIAGTOOL9.3Excellent
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-
is discontinued by manufacturer:N/A
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product dimensions:9.8 x 6.69 x 1.58 inches
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manufacturer part number:VDT-VD10
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item weight:9.2 ounces
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customer reviews:4.6 4.6 out of 5 stars 1,813 ratings 4.6 out of 5 stars
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6
FOXWELL9.2Excellent
FOXWELL NT301 OBD2 Scanner Live Data Professional Mechanic OBDII Diagnostic Code Reader Tool for Check Engine Light
19% Off
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7
9.1Excellent
EMI Royal Premium Quality Deluxe EKG ECG Medical Nursing Caliper Electrocardiogram Divider for Nursing，Electrocardiographs Measuring Tool for Doctors, Nurses, Medical Student - EKG-100-Royal
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8
9.0Excellent
Universal Car Motor Diagnostic Tool, Scanner and Battery Tester, Check Engine Light, Evap Test, Cranking & Charging System Test for Car Motorcycle, Scanner Diagnostic for All Cars(1pc)
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9
Yakry8.9Very Good
2-in-1 OBD2 Scanner with Battery Tester: 1S Read & Clear Check Engine Codes + Test Battery in 3 Mins - DIY Car Diagnostic Tool with Cold Cranking Amps for Pre-Trip Safety on 1996+ Vehicles
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10
FOXWELL8.8Very Good
2-in-1 FOXWELL NT301 Plus OBD2 Scanner with 12V Battery Tester, Check Engine Light Code Reader, Car Battery/Starter/Charging System Test, Live Data Diagnostic Tool for 1996+ OBDII Vehicles
20% Off Limited Time Deal-
is discontinued by manufacturer: No
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product dimensions: 3.7 x 1.26 x 5.71 inches
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manufacturer part number: NT301 Plus
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item weight: 1.32 pounds
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customer reviews:4.4 4.4 out of 5 stars 1,672 ratings 4.4 out of 5 stars
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