Digital brake fluid tester KJ KJ25D

KJ KJ25D Digital Brake Fluid Tester

The professional KJ25D digital brake fluid tester is a high-precision diagnostic instrument designed for instant quality assessment of automotive brake fluid. By measuring the moisture percentage, the device helps detect fluid degradation early, preventing brake system failure. Featuring a long flexible probe, a backlit informative screen, and built-in alarm alerts, this tool is indispensable for automotive workshops, service stations, professional mechanics, and car enthusiasts.

Design Features & Benefits:

• Wide Compatibility: The tester is fully compatible with the most widely used brake fluid standards — DOT3, DOT4, and DOT5.1.

• Clear Diagnostic Grading: Automatically evaluates fluid health based on moisture level: under 2% indicates good condition (no replacement needed); 2.5% and above signifies poor performance and an urgent need for replacement.

• Extended Reach Probe: Equipped with a 250 mm flexible testing probe that easily reaches into brake fluid reservoirs tucked deep inside tight engine bays.

• Low-Light Capability: The integration of a backlit display and a built-in LED flashlight ensures smooth and effortless diagnostics inside dark garages or poorly lit under-hood areas.

• Smart Power Management: Features a low battery status indicator and an Auto Power-off mechanism that shuts down the system after 5 minutes of inactivity to preserve battery life.

Technical Specifications:

• Model: KJ25D

• Supported Fluid Types (Range): DOT3, DOT4, DOT5.1

• Fluid Status Evaluation (For KJ25D):

  • < 2% — Good condition, no need to replace

  • ≥ 2.5% — Poor performance, degradation detected, replacement required

• Probe Length: 250 mm

• Power Supply: 6V (4 × 1.5V AAA batteries)

• Features: Backlight, built-in flashlight, alarm indicator, Auto Power-off (5 mins)

• Operating Temperature: -10 °C to 50 °C

• Dimensions: 120 mm × 55 mm × 30 mm

• Weight: 193 g

• Packaging Type: Branded box (Note: QR code data output function is not supported on the KJ25D model; it is exclusively available on the KJ25C modification)