Brake fluid testers in comparison
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Last updated on 10.11.2026
1
Aicevoos NF Brake Fluid Tester with Sound Light Double Alarm Function, Calibrated for DOT3 DOT4 DOT-5.1 Brake Fluid Tester Pen
Aicevoos
free shipping
To the product (1 offer)
9,9
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2
Laser 4875 Brake Fluid Tester, Black
Laser
free shipping
To the product (7 offers)
9,8
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3
ZKTOOL Upgraded Automotive Brake Fluid Tester Pen for DOT3 DOT4 DOT5 | Universal 5 in 1 Detector ENV6 ENV4 Oil Detection Pen, 5 LED Indicator Light, Premium Brake Fluid Moisture Analyzer Tool
ZKTOOL
free shipping
To the product (1 offer)
9,7
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4
KINGBOLEN BF200 Brake Fluid Tester,Brake Fluid Diagnostic Test Tool,Hydraulic Fluid/Fluid/Oil Moisture Analyser with LCD Screen, Akustischer Alarm Tester for DOT3 DOT4 DOT5.1.
KINGBOLEN
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To the product (1 offer)
9,5
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5
Phoenix Systems 8006-B Double-Ended Coolant + Brake Fluid Test Strips (15 foil wrapped test strips), 1 Pack
Phoenix Systems
free shipping
To the product (1 offer)
9,5
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6
Sealey Pocket Brake Fluid Tester - VS0274
Sealey
3% off
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To the product (12 offers)
9,4
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7
AUTOUTLET Brake Fluid Tester, 3-Digit LCD Display for DOT3/4/5.1 | ±0.3% Accuracy 0-4% Range, 3-Color Backlight and Buzzer Alarm, Corrosion-Resistant Probe, 8-Language Manual
AUTOUTLET
free shipping
To the product (1 offer)
9,4
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8
Lisle 81850 Combination Brake Lining Gauge Set,9
Lisle
free shipping
To the product (1 offer)
9,3
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9
BGS 74420 | Brake Fluid Tester | for DOT and ENV | Water content H²O | LED display | pen shape with clip | protective cap | length 155 mm | 1 x AAA 1.5 V incl.
BGS
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9,2
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10
US PRO Tools Brake Fluid Tester Pen DOT 3 4 5 LED Display Test for Water 5394
US PRO
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9,2
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You might also be interested in these brake fluid testers.
Universal Brake Fluid Tester, Portable Precision Brake Oil Quality Control Digital Test Pen, Auto Vehicle Automotive Diagnostic Test Tool
5 LED indicators show the test results more accurate.
£ 8.99
free shipping
To the product (1 offer)
AUTOOL Brake Fluid Tester | Brake Fluid Moisture Tester DOT3/DOT4/DOT5/DOT5.1/ENV4/ENV6
AUTOOL Brake Fluid Tester
£ 23.74
free shipping
To the product (1 offer)
9% off
Hayatec Car Brake oil Tester Pen, Mini Automobile Diagnostic Brake Oil Detection Pen with 5 LED Indicator, Calibrated for Testing DOT3 DOT4 fluid, Brake oil Water indicator
Hayatec Simple Brake Fluid Tester Tool: Digital measuring provide quick and easy way to test the presence of water in the brake fluid, specially developed for car users & garage mechanics .
£ 7.75
free shipping
To the product (1 offer)
Automotive Brake Fluid Tester Pen, Brake Fluid Tester dot 3 dot 4 dot 5.1 | Ht663L Brake Oil Tester with 8.5 Inch Probe, Brake Fluid Tester Car with Data Hold,3 Colors Backlight Alarm
Resiprolty
£ 13.89
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To the product (1 offer)
Brake Fluid Tester Brake Moisture Tester Pen DOT3/DOT4/DOT5.1 | Automotive Brake Fluid Oil Detector, Brake Fluid Measuring Tool with LED Flashlight, Color Backlight Indicator, Buzzer Alarm
【Accurate Measurement】Measures water content in DOT3, DOT4, and DOT5.1 brake fluids from 0% to 4%, helping ensure safe and optimal braking performance. 【Audio and Visual Alarm】Features a color-coded backlight (Green, Yellow, Red) combined with buzzer sounds to clearly indicate fluid condition—safe, needs changing soon, or urgent replacement. 【High-precision Metal Probe】This brake fluid tester features a highly accurate metal sensor and a flexible, bendable gooseneck design.
£ 24.90
free shipping
To the product (1 offer)
Brake Fluid Liquid Tester Pen, DOT3 DOT4 DOT5.1 Brake Fluid Moisture Tester, Oil Moisture Analyzer for Check Engine Automotive
TECHNICAL PARAMETERS: Detection range from 0%~4%, error is ±0.3%, detection type contain
£ 11.40
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To the product (1 offer)
For Brake Fluid Tester-Car Brake Oil Tester Pen Brake Fluid Tester Brake Fluid Liquid Oil Tester Pen 5 Led Indicator Car Testing Tool For Dot3/4/5
Customized models --- Car Brake oil Tester Pen can be used by 4S auto stores and car owners.
£ 6.48
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To the product (1 offer)
DHA Brake Bleeding Kit Hand Held Vacuum Pump Pressure Tester | Brake Fluid Bleeder Kit for Car Motorcycle One Man
Brake Bleeder Vacuum Pump Tester One Man: Cushioned pistol grip handle with vacuum gauge, simple operation, Precise pressure gauge 0-30 inches Hg, 0-760 mm Hg.
£ 12.80
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To the product (2 offers)
CENPEK Brake Fluid Tester with Illumination Alarm Function Brake Fluid Diagnostic for Cars Motorbikes Trucks Etc Support DOT3 DOT4 DOT5.1
Our Brake Fluid Tester is equipped with a highly sensitive and precise probe, allowing for quick and accurate detection of DOT-3, DOT-4, DOT-5.1 brake fluid and providing results in seconds.
£ 17.99
free shipping
To the product (1 offer)
Brake Fluid Liquid Tester, Auto Brake Diagnostic Testing Tool DOT 3 DOT 4 DOT 5.1 Oil Moisture Analyzer for Check Engine Automotive
Quick Distinguish: The water content is 0%‐4% representing no water and the amount of water content in turn, so that car owners can quickly understand whether the water content of the brake fluid is qualified. Scratch Resistant
£ 13.17
free shipping
To the product (1 offer)
5% off
Fyearfly Brake Fluid Tester, Digital Brake Fluids Analyzer Pen High Sensitivity Portable Brake Oil Detector with Flexible Gooseneck Probe, for DOT3, DOT4, DOT5.1
【Wide Application】Brake Fluid Tester Digital Pen is a commonly used tool for most vehicles.
£ 9.99
free shipping
To the product (1 offer)
ConBlom Brake Fluid Tester, Intelligent Brake Fluid Diagnostic Test Tool with LCD Screen for Vehicle Car DOT3 DOT4 DOT5.1
ConBlom
£ 28.99
free shipping
To the product (1 offer)