Accurate Readings
The digital LCD display shows accurate moisture content in your brake fluid, so you know exactly when a change is needed.
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- 14-day easy returns
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- Quality guaranteed
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Why customers love it
Know Your Brake Fluid Health in Seconds
This compact digital tester quickly checks the condition of your vehicle's brake fluid, helping you determine when a change is needed. With a clear LCD readout and an audible alarm, it takes the guesswork out of brake maintenance.
- Digital LCD display shows accurate moisture content in brake fluid
- Audible alarm alerts you when fluid needs replacement
- Works with DOT 3, DOT 4, and DOT 5.1 brake fluids
- Instant results — simply dip the probe into the reservoir
- Battery-powered for portable, cordless operation
- Pen-style design is easy to handle and store
Why You'll Love This Brake Fluid Tester
Clear Alerts
An audible alarm alerts you the moment fluid needs replacement, taking the guesswork out of brake maintenance.
Wide Compatibility
Works with DOT 3, DOT 4, and DOT 5.1 brake fluids, making it a versatile tool for most vehicles.
Portable & Cordless
Battery-powered for portable, cordless operation, so you can test anywhere without being tethered to a power source.
Setup
How to Use
No electrician, no wiring, no fuss.
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Dip the Probe
Simply dip the probe into the brake fluid reservoir to begin the test.
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Read the Display
The tester provides instant results, showing the moisture content on the digital LCD display.
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Check the Alarm
If the audible alarm sounds, it's time to replace the brake fluid.
Specs
The details that matter
Built to last outdoors, season after season.
- Model Number
- HM35
- Product Type
- Brake Fluid Tester
- Display
- LCD
- Compatible Fluids
- DOT 3, DOT 4, DOT 5.1
- Power
- Battery-powered
Our worry-free shopping promise
If your order arrives damaged, defective, or not as described, contact us within 14 days and we will make it right with a replacement or refund.
Frequently asked questions
Everything you might want to know before you order.
Which brake fluid types is this tester compatible with?
This tester works with DOT 3, DOT 4, and DOT 5.1 brake fluids, covering the most common types used in modern vehicles.
How does the tester indicate that brake fluid needs to be replaced?
The digital LCD display shows accurate moisture content in the brake fluid, and an audible alarm alerts you when the fluid needs replacement.
Is this tester portable and easy to use at home?
Yes, the pen-style design is easy to handle and store, and it is battery-powered for portable, cordless operation, making it convenient for use at home or in the workshop.
How do I use the brake fluid tester?
Simply dip the probe into the brake fluid reservoir and get instant results, making it a quick and straightforward check for routine brake inspections.
Shipping & returns
Shipping
- Delivers to United States (based on your selected country/region).
- Estimated delivery: 3–15 business days after dispatch.
- Shipping cost: Free.
Returns
You can request a return within 14 days after delivery. Standard returns have a €4.00 EUR (approximately $4.66 USD) flat-rate return shipping fee, deducted from your refund. Return shipping is free for items that arrived damaged, defective, or incorrect. Items should be unused and in original packaging where possible. Contact us before sending anything back.