• 【Professional Brake Fluid Tester】Digital testing pen designed for accurate moisture detection in DOT3/DOT4/DOT5.1 brake fluids with precise 0%-4% water content measurement.
• 【Dual Alert System】Features audio-visual alarm with LCD display showing numerical readings, color-changing backlight (green/yellow/red), and progressive beeping for clear moisture level indication.
• 【High-Precision Detection】Built-in sensitive probe delivers accurate moisture content readings with oblate-shaped metal probe for reliable contact with brake fluid.
• 【User-Friendly Operation】Simple three-step process: power on, select oil type with S button, immerse probe in brake fluid for instant results on LCD screen.
• 【Portable Pocket Design】Compact pen-style design with removable clip and protective cap, ergonomic grip for comfortable handling during automotive maintenance.
• 【Smart Power Management】Auto-shutdown after 5 minutes of inactivity, low battery indicator, and energy-efficient operation for extended field use.

Specifications:

• Dimensions: 175 x 23 x 27 mm
• Display: LCD with red/green/yellow backlight
• Detection Range: 0% - 4% water content
• Probe Shape: Oblate
• Auto Shutdown: 5 minutes
• Safety Standard: EN61326-1
• Material: ABS plastic
• Power Source: 2 x 1.5V AAA batteries (not included)