Features Segmented Instructions: The device uses segmented indicators to show water content levels between 0%-4%, helping users quickly determine if brake fluid moisture levels are within acceptable limits. Material: Constructed from high-precision metal material. Wipe the probe with a dry cloth or paper towel after each use to maintain accuracy and extend the life of the tester. 5 LED Lights Display: Five LED lights indicate the moisture percentage in brake fluid for more accurate test results. Frosting Process: The exterior features a frosted finish for improved grip and reduced slippage. Compact and Portable Design: Small and lightweight, this brake fluid tester fits easily in a toolbox or glove compartment, making it convenient for portable use. Notice: 1. Actual color may vary slightly due to lighting and screen differences. 2. Please allow 1-3 cm variation due to manual measurement. Voltage: 12 V Operating Temperature: 56 °C Size: As shown in picture Power Supply: 1 x AAA battery (not included) Package List: 1 x Brake Fluid Tester