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Color Screen Self Calibrating Brake Fluid Tester Pen For Auto Brake Fluid Test

Product Price
$ 27.43 In Stock
SKUTY001159
MOQ1
KG/Piece0.15 KG
Returns30 days returns. Buyer pays for return shipping. If you use an Acctes shipping label, it will be deducted from your refund amount.
See details
Screen Type Black & White Screen Color Screen, Self-calibrating
Quantity

Color Screen Self Calibrating Brake Fluid Tester Pen

Product Overview

Our Color Screen Self Calibrating Brake Fluid Tester Pen is a professional, portable diagnostic tool designed to accurately measure moisture content in automotive brake fluid. Brake fluid naturally absorbs moisture from the air over time, which lowers its boiling point and reduces braking performance — creating a serious safety hazard for drivers.

This compact tester pen delivers fast, accurate results in just 3 seconds, allowing both professional mechanics and DIY car enthusiasts to quickly assess brake fluid condition and determine when replacement is necessary. With self-calibration, a high-resolution color display, and audible alarm alerts, this tool takes the guesswork out of brake system maintenance.

Key Features

  • ✓ Self-calibrating design ensures consistent, accurate measurement results every use

  • ✓ High-precision corrosion-resistant probe with ±0.3% measurement accuracy for reliable readings

  • ✓ Clear color display with color-coded results: Green (

    <1.5% moisture="monitor" yellow="" red="">3% moisture = replace immediately)

  • ✓ Compatible with all common brake fluid types: DOT3, DOT4, and DOT5.1

  • ✓ Buzzer alarm alert for high moisture content, drawing immediate attention to unsafe brake fluid condition

  • ✓ Data hold function freezes measurement on screen for easy reading and recording

  • ✓ Automatic 1-minute sleep mode for energy efficiency and extended battery life

  • ✓ Compact pen-style design with pocket clip for easy portability and storage

Technical Specifications

SpecificationDetails
Product TypeBrake Fluid Moisture Tester Pen
Display TypeThree-digit HTN Color Screen
Measurement Range0% to 4% moisture content
Measurement Accuracy±0.3%
Compatible Fluid TypesDOT3, DOT4, DOT5.1
Power Requirements3V (2 x LR44 batteries)
Product MaterialImpact-resistant ABS plastic housing + corrosion-resistant metal probe
Product Dimensions156 x 65 x 22.3 mm
Product Weight121 g
CompatibilityUniversal for all passenger vehicles and light trucks

How It Works

This brake fluid tester measures moisture content based on changes in electrical conductivity of brake fluid. As moisture content increases, conductivity rises, allowing the tester to accurately calculate the percentage of water contamination.

  1. Remove the tester cap and turn on the device

  2. Insert the probe fully into the brake fluid reservoir

  3. Wait 3 seconds for the digital reading to stabilize

  4. Read the color-coded result:

    • Green (<1.5% moisture):Brake fluid is in good condition, no replacement needed

    • Yellow/Gray (1.5-3% moisture): Brake fluid is contaminated, monitor closely and plan for replacement soon

    • Red (>3% moisture): Dangerous moisture level! Replace brake fluid immediately to restore safe braking performance

  5. Clean the probe with a dry cloth after use and replace the cap

Common Applications

👤 Private Vehicle Owners

  • Routine home brake system maintenance

  • Pre-purchase used vehicle inspection

  • Pre-trip road trip safety checks

  • DIY brake fluid replacement projects

🔧 Professional Service

  • Automotive repair shops and garages

  • Car dealership service departments

  • Brake system inspection and service

  • Preventive maintenance programs

  • Mobile auto repair services

Package Contents

  • 1 x Color Screen Self Calibrating Brake Fluid Tester Pen

  • 1 x User Instruction Manual

  • 1 x Retail Storage Packaging

  • *Batteries are not included due to shipping regulations

Why Choose This Brake Fluid Tester?

Regular brake fluid testing is a critical part of vehicle maintenance that is often overlooked by drivers. Moisture contamination reduces brake fluid boiling point, which can lead to vapor lock and brake failure during heavy use — especially dangerous during long downhill drives or emergency stopping.

Our self-calibrating color screen tester delivers professional-grade accuracy at an affordable price, giving you peace of mind and helping you avoid unnecessary maintenance costs. Whether you're a DIY car owner or a professional mechanic, this tool is an essential addition to your automotive

Payment

  1. We accept a variety of safe and convenient payment methods to meet your different transaction needs, including Alipay, Visa, MasterCard, Telegraph Transfer (T/T), Western Union, and other mainstream payment channels. We also support customized payment solutions according to your actual needs. If you have special payment requirements (such as other payment methods not listed), please feel free to consult our customer service window, and we will provide you with the most suitable payment plan.

  2. Before completing the payment, please carefully check and confirm the accuracy of the payment amount, your account information, and the receiving address. Any errors in the above information may lead to payment failure, payment delay, or delivery errors. We will not be responsible for any losses caused by incorrect information provided by the buyer.

  3. If you encounter any problems during the payment process (such as payment failure, payment stuck, etc.), please contact our customer service in a timely manner. We will respond to you within 24 hours and help you solve the problem to ensure the smooth progress of your payment.

Shipping

  1. All orders will be processed and shipped within 3-5 business days after we receive your full payment (excluding weekends, public holidays, and force majeure events such as natural disasters and logistics outages). Before shipment, our professional quality inspection team will conduct a comprehensive inspection of the goods to ensure that the product quality meets the standard and there is no damage or missing parts.

  2. We only ship goods to the confirmed order address. Please make sure that your order address is consistent with your actual shipping address. If you need to modify the shipping address, please contact our customer service in a timely manner before the order is shipped. Once the goods are dispatched, we will not be able to change the shipping address, and any losses caused thereby shall be borne by the buyer.

  3. For international shipments, the delivery time is affected by factors such as customs clearance speed, local logistics efficiency, and regional policy restrictions. Therefore, we cannot guarantee the exact delivery time. We will provide you with a logistics tracking number immediately after the goods are shipped, so you can check the real-time logistics status at any time.

  4. Any customs duties, import taxes, or other additional fees incurred during the international transportation of goods shall be borne by the buyer. We will provide all necessary documents (such as commercial invoices) required for customs clearance to assist you in completing the customs clearance process smoothly. If you need help with customs clearance-related issues, please contact our customer service.

  5. During the transportation process, if the goods are damaged, lost, or have missing parts due to logistics reasons, please take photos and keep the relevant logistics documents in a timely manner, and contact our customer service immediately. We will verify the situation and provide you with solutions such as return, replacement, or refund according to the actual situation.

  6. Please pay attention to the logistics tracking information. If you find any abnormalities (such as delayed delivery, wrong delivery address, etc.), please contact us in time, and we will coordinate with the logistics company to solve the problem as soon as possible.

Terms Of Sale

  1. If you have any questions about the product, payment, shipping, or other related matters, please contact our customer service in a timely manner. We will respond to you within 24 hours and provide professional solutions to ensure that your problems are properly resolved.

  2. If you do not receive the goods within the expected time, or if you are not satisfied with the received goods (such as product damage, inconsistent specifications, etc.), please do not open a dispute or leave neutral/negative feedback without communication. Contact us first, and we will actively coordinate and solve the problem for you to your satisfaction.

  3. If you receive defective goods (a rare occurrence), please provide clear photos that can show the problem, and we will provide you with a full refund or free replacement according to the actual situation. No additional fees will be charged to you during the process.

Returned & Refund

Your satisfaction is our top priority. All goods are strictly inspected and tested before shipment to ensure that they meet the quality standards.

  1. If you are not satisfied with the goods received, or if the product does not match the description, please contact us first to confirm the return address and logistics method before returning the goods. Do not return the goods without authorization, otherwise, we will not be able to process your return and refund normally.

  2. All returned goods must be in their original condition (without damage, missing parts, or signs of use), and you need to provide the logistics tracking number and a detailed description of the return reason.

  3. The shipping cost for returning the goods shall be borne by the buyer. If the return is caused by our own reasons (such as wrong product, quality problems), we will bear the return shipping cost and provide you with a full refund or free replacement.

  4. If the goods are damaged, lost, or have missing parts due to the buyer’s improper use, storage, or transportation, the buyer shall be responsible for the corresponding losses, and we will not provide a full refund or replacement service.

Feedback

  1. Customer satisfaction is the foundation of our development. Your feedback is very important to us. Whether it is praise, suggestions, or complaints, please feel free to contact us. We will carefully listen to your opinions and continuously optimize our products and services.

  2. If you are satisfied with our products and services, we would appreciate it if you could leave positive feedback. If you have any dissatisfaction, please contact us before leaving neutral or negative feedback—we will do our best to solve the problem and give you a satisfactory reply.



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