The Techstar® YM-C03 digital brake fluid tester is a smart device for quick and accurate checking of the water content in brake fluid. It is ideal for car workshops and home use, compatible with DOT3, DOT4, and DOT5.1 fluids, and provides clear results on a backlit HTN display with color coding.

• Measures water content in brake fluid (green <1.5%, yellow <3%, red 3–4%)
• 0.96-inch LCD screen with wide viewing angle and high contrast
• Accurate sensor and audible alert for maximum safety
• Automatic sleep mode after 1 minute to save battery
• Compact, lightweight, and portable – operates with one AAA battery
• Recommended for cars, motorcycles, SUVs, and trucks
• Dimensions: 155 x 30 x 25 mm
• Weight: 38.5g
• Operating voltage: 1–1.5V
• Current status: 22uA
• Temperature range: 0–50°C

This specific type of product is a brake fluid tester.