Brake fluid tester 5 LED display for DOT3/DOT4
✓ High reliability and long service life
✓ Easy handling and user-friendliness
✓ Fast and competent customer service
✓ 12 months warranty
Brake fluid tester 5 LED display for DOT3/DOT4 is backordered and will ship as soon as it is back in stock.
Brake fluid tester 5 LED display for DOT3/DOT4
Description
Description
Brake fluid detection device | Brake oil quality check
The brake fluid tester allows you to easily and reliably check the quality of your brake fluid . This handy device measures the moisture content of the brake fluid and displays the result via a 5-LED indicator . It is perfectly suited for testing DOT3, DOT4, and DOT5 brake fluids.
Product features of the brake fluid detection device
- Condition: 100% New
- Brake fluid quality check: Indicates the moisture content
- 5 LED lights: Indicates the moisture levels of the brake fluid
- Automatic shut-off: Energy-saving, switches off automatically after use.
- Battery: Requires 1 LR03 AAA battery (not included)
How it works
The brake fluid detection device uses changes in conductivity to measure the moisture content of the brake fluid. The moisture level is indicated by colored LED lights.
- Green LED: Brake fluid in good condition, water content <1.5%
- Yellow LED: Water content between 1.5% and 3%, check recommended in six months
- Red LED: Water content >3%, immediate brake fluid change required.
- Red LED flashing: Battery low, battery replacement necessary
Technical specifications
| Testable brake fluids | DOT3, DOT4, DOT5 |
|---|---|
| power supply | 1 LR03 AAA battery (not included) |
| Humidity indicator | 5 LEDs (Green, Yellow, Red) |
| Automatic shutdown | Yes |
Instructions for use
- Turn on the device by pressing the switch. The green LED indicates that the battery is in good condition.
- Immerse the tip of the device in the brake fluid.
- The LED indicators light up and show the current moisture content of the brake fluid.
- Replace the brake fluid as needed, according to the LED indicators.
Buy the brake fluid detection device now
Order the brake fluid level tester today and ensure maximum safety and performance for your vehicle. Ideal for workshops , hobby mechanics , and professional technicians.
Attention EU buyers: We issue net invoices when you provide your VAT ID number. Do you have any questions? Please feel free to call us on +49 711 36544645.
Technical background to brake fluid testing
Why moisture in brake fluid is critical
Brake fluid is hygroscopic, meaning it attracts moisture from the surrounding air over time. Even small amounts of water significantly lower its boiling point. Under high thermal stress, such as during long downhill drives or with heavy vehicle loads, vapor bubbles can form. These vapor bubbles are compressible and lead to increased pedal travel or, in extreme cases, partial brake failure. Regular checks with a suitable testing device significantly reduce this risk.
Measurement principle via electrical conductivity
The brake fluid detection device uses changes in electrical conductivity to determine the water content. Pure brake fluid has a different conductivity than fluid mixed with water. The resistance is measured via two electrodes and evaluated electronically. The integrated circuit assigns the measured value to a predefined threshold and activates the corresponding LED stage.
Differentiation from professional boiling point testers
Some workshops also use boiling point measuring devices that actively heat the brake fluid. These methods are very accurate, but more complex and expensive. The device described here represents a practical, fast, and sufficiently accurate alternative for routine checks. Conductivity measurement is particularly cost-effective during service intervals or pre-purchase inspections.
Areas of application in workshop and practice
Rapid diagnosis during the service acceptance process
A quick brake fluid check can be performed as soon as the vehicle is received. Within seconds, the service advisor receives a reliable assessment of the fluid's condition. This facilitates transparent customer consultation and makes it easier to justify the need for a brake fluid change.
Integration into maintenance plans
Many manufacturers specify a brake fluid change every two years. However, the actual condition of the fluid can vary. A brake fluid analysis device enables a condition-based assessment and supplements rigid maintenance intervals with a technical measurement basis.
Use in used car inspections
In the used car market, the assessment of safety-relevant components is crucial. Besides brake pads and discs, the brake fluid should also be inspected. Elevated water content can indicate outstanding maintenance and can be factored into price negotiations.
Application in the private sector
Ambitious DIY mechanics also benefit from a quick condition check. Regular inspections before putting older vehicles or cars used seasonally are particularly recommended.
Software and hardware aspects
Electronic evaluation unit
Inside the device is a compact evaluation electronics unit that processes the measured resistance. The calibration is factory-defined and optimized for typical DOT3, DOT4, and DOT5 brake fluids. This eliminates the need for manual adjustment by the user.
Robust sensor design
The measuring tip is designed to withstand brief immersion in brake fluid without causing corrosion or material damage. Nevertheless, the device should be cleaned with a suitable cloth after use to remove residue and ensure long-term measurement accuracy.
Power supply and automatic shutdown
The automatic shut-off significantly reduces energy consumption. Especially in everyday workshop use, where devices are frequently in operation, this function prevents unnecessary battery discharge and increases availability.
Safety-relevant assessment and purchase recommendation
The brake fluid tester offers a practical and economical solution for quickly assessing the condition of brake fluid. The clear LED display allows for immediate interpretation without the need for additional evaluation tools. For workshops, it provides an efficient addition to the regular service process, while for private users it offers a simple way to perform independent safety checks.
Given the critical importance of the braking system for safety, brake fluid should not be neglected. A compact, ready-to-use measuring device allows for an objective assessment of the fluid's condition and enables timely replacement. This not only increases driving safety but also protects components such as ABS hydraulic units and brake calipers from corrosion-related damage.
Shipping and payment conditions
Shipping and payment conditions
FREE SHIPPING ON ORDERS OVER €50!!
The goods are regularly delivered by mail to the delivery address provided by the customer. For processing the transaction, the delivery address stored by the customer on eBay is decisive. However, if PayPal is selected as the payment method, the delivery address stored by the customer with PayPal at the time of payment is decisive.
If delivery to the customer was not possible and the shipping company returns the goods to the seller, the customer bears the costs of the unsuccessful delivery. This does not apply if the customer exercises their right of withdrawal by refusing acceptance, if they are not responsible for the circumstances that led to the impossibility of delivery, or if they were temporarily prevented from accepting the delivery, unless the seller had notified them of the delivery a reasonable time in advance.
You can choose to pay by prepayment, PayPal (direct debit and credit card via PayPal), or cash on delivery. A surcharge of €9.99 will be added for cash on delivery payments.
Free shipping within Germany for orders over €50
Shipping costs within the EU are €14.99.
Delivery within Germany takes 2-3 working days.
Further information
The importance of automotive diagnostic devices for vehicle maintenance
The importance of automotive diagnostic devices for vehicle maintenance
Original diagnostic devices for cars and trucks are indispensable tools for modern vehicle maintenance and repair. These devices make it possible to read error codes generated by the various control units of a vehicle. By using professional diagnostic devices, workshops and vehicle owners can quickly and precisely identify and resolve problems. This increases the efficiency of the repair processes and contributes to the longevity of the vehicles. Professional diagnostic devices also offer advanced functions such as in-depth diagnostics and programming of control units, which is particularly useful for complex repairs and maintenance work. With a vehicle diagnostic device, you can ensure that your vehicle is always in perfect condition.
Why professional diagnostic devices are indispensable
Why professional diagnostic devices are indispensable
Professional diagnostic devices are specially designed for use in workshops and by professionals. They offer comprehensive diagnostic capabilities and support a wide range of vehicle makes and models. These devices can not only read and clear error codes , but also display live data and perform special tests such as actuator tests. They also allow the calibration of control units and the performance of service resets. Thanks to these advanced functions , professional diagnostic devices can make the work of mechanics much easier and improve the quality of the repairs carried out. A professional diagnostic device is therefore an indispensable tool for every professional workshop.
How OBD diagnostic devices work
How OBD diagnostic devices work
OBD (On-Board Diagnostic) systems are standardized diagnostic tools used in almost all modern vehicles. These systems monitor the vehicle's performance and emissions and store error codes when a problem occurs. OBD diagnostic devices can read these error codes and provide detailed information about the condition of the vehicle. This includes monitoring engine parameters, exhaust emissions and other critical systems. By using OBD diagnostic devices regularly, potential problems can be identified and resolved early before they lead to larger and more costly damage. An OBD diagnostic device should therefore be in every vehicle to make car diagnostics efficient and comprehensive.
Auto diagnostics: A key to efficient vehicle repair
Auto diagnostics: A key to efficient vehicle repair
Auto diagnostics includes a variety of techniques and tools for monitoring and analyzing the condition of a vehicle. By using modern original diagnostic devices for cars and trucks Mechanics can carry out precise fault analyses and make targeted repairs. This not only saves time, but also costs for the vehicle owner. Modern diagnostic devices also offer the option of carrying out software updates and making adjustments to the vehicle control units. This is particularly important for optimizing vehicle performance and adapting to individual requirements. The continuous development of diagnostic technology helps to ensure that vehicles can be operated more safely and efficiently. With a reliable car diagnostic device, you always have all the important information at hand to optimally maintain and repair your vehicle.