Know your stopping power,
with laboratory precision
RadivJoli provides a clear, 5-LED diagnostic of your brake fluid's health in under a second. Designed with nickel-plated sensors for industrial durability and 1% accuracy across DOT3, DOT4, and DOT5 systems.
The Guesswork Way
- Checking fluid based on color only
- Soft brake pedal before taking action
- Expensive ABS pump failures
- Unknown boiling point safety levels
Data-Driven Safety
- Instant 1% moisture increments
- Clear Green/Yellow/Red status
- Proactive maintenance saves money
- Confidence in your vehicle's brakes
Pro-grade diagnosticsin the palm of your hand
Graduated 5-LED Moisture Display
The color-coded scale provides an immediate diagnosis. From Green (good) to flashing Red (immediate change), you get exact data rather than a vague pass/fail result, ensuring informed maintenance.
- 1.5% to 4%+ moisture mapping
- No mechanical knowledge required
- Flashing Red low-battery warning
Dual Anti-Corrosion Construction
Designed for the harsh workshop environment, our nickel-plated sensor resists chemical corrosion far better than standard steel. The ABS + PE outer casing ensures long-term reading accuracy.
- Nickel-plated precision sensor
- Chemical-resistant ABS+PE shell
- Maintains calibration over time
DOT3/DOT4/DOT5 Compatible
A single tool for your entire garage. RadivJoli tests all common brake fluid grades used in passenger cars, vans, SUVs, and light trucks without needing manual settings.
- Works on all standard car brands
- One-button simple operation
- Automatic power-off battery saver
Test your safety,in under 10 seconds
Insert Probes
Press the power button and submerge the nickel-plated probes into the brake fluid reservoir.
Check the LEDs
The 5-LED indicator lights up instantly to show the percentage of water contamination in the fluid.
Wipe & Store
Wipe the probes clean with a dry cloth. The unit will auto-power off to save your AAA battery.
Clear Results
Safe < 1.5% — Tested in 1s
Built forprecision mechanics
Compact, reliable, and essential for every toolbox. See the build quality that makes RadivJoli a favorite for DIYers and pros alike.
RadivJoli Brake Tester
Professional 5-LED Moisture Tester
- Regular price
- $29.00
- Sale price
- $29.00
- Regular price
-
$58.00
- 1% Precision Sensor
- Anti-Corrosion Nickel Probe
- DOT 3, 4, & 5 Compatible
- Auto Power-Off Function
Why drivers chooseRadivJoli
| Feature |
RadivJoli
|
Basic Sticks | Generic Tools |
|---|---|---|---|
| Sensor Type | Nickel-Plated | Plain Steel | Alloy |
| Readout Logic | 5-Stage Graduated | Pass/Fail Only | |
| Compatibility | Limited | ||
| Accuracy | Variable | ||
| Auto-Off | No | ||
| Corrosion Resistance | |||
| Low Battery Warning | |||
| Price | $29 | $15 | $45 |
Safety Value
Priceless Protection
Trusted by mechanicsand DIYers
Based on 1,852+ reviews
A*****d
M*****k
S*****e
R*****t
B*****n
J*****h
"I used to just guess based on the mileage, but this tester showed me my fluid was dangerously contaminated even though it looked clean. Likely saved me from a major accident."
Anthony M.
Verified Owner
"As someone who works on their own cars, this is a must-have. The nickel probes haven't corroded at all after months of use. Very accurate compared to the shop tool."
Robert E.
Verified Owner
"The LED display is super easy to read. Green means go, red means change. No confusing manuals or calibration needed. Worth every penny."
Karen L.
Verified Owner
4.9
User Rating
1.8K+
Vehicle Safety Checks
98%
Accuracy Rate
1s
Testing Time
LIFETIME
Satisfaction Guarantee
We stand by the accuracy of our tools. If you're not satisfied with the precision and build quality of your RadivJoli Brake Fluid Tester, return it within 90 days for a full refund. No hassles.
Expert answers forsafe driving
Safety shouldn't be a guess
Stop worrying about your brake health. Get professional-grade diagnostics today and ensure your car stops when you need it most.
Claim 50% Discount
