Brake Fluid Tester - Moisture Content Indicator

Ensure your vehicle’s braking performance and safety with the Brake Fluid Tester – Moisture Content Indicator.

This easy-to-use device detects water contamination in brake fluid using conductivity measurement.

With a clear LED display, it helps you quickly determine whether your brake fluid is in good condition, needs monitoring, or requires replacement — preventing brake failure and maintaining optimal performance.

Main Features:

• Accurate moisture detection using electrical conductivity measurement
• LED indicator system (Green, Yellow, Red) shows brake fluid condition at a glance
• Instant test results – no waiting or complex setup
• Compact, pen-style design for easy handling and portability
• Battery status indication via flashing red light
• Helps prevent brake fade and ensures safer driving

LED Indicator Meanings:

1. Green: Water content < 1.5% – Brake fluid OK

2. Yellow: Water content 1.5%–3% – Retest in six months

3. Red: Water content > 3% – Replace brake fluid immediately

4. Flashing Red: Battery in tester needs replacement

5. Green + Yellow: Water < 1% – Excellent condition

6. Green + Yellow + Yellow: Water ≈ 2% – Still usable

7. Green + Yellow + Yellow + Red: Water ≈ 3% – Replacement recommended

8. Green + Yellow + Yellow + Red + Red: Water ≥ 4% – Replace immediately (unsafe)

Specification:

• Function: Brake fluid moisture detection

• Detection Method: Electrical conductivity

• Display: Multi-color LED indicator (Green, Yellow, Red)

• Power Supply: Battery operated (user-replaceable)

• Application: Suitable for DOT3, DOT4, and DOT5.1 brake fluids