Features: High-Definition Display: With its LCD screen, the tester provides clear and accurate readings of water content in brake fluid, even in low-light conditions thanks to its backlight feature. Durable & Resilient Probe: The tester features a 300mm stainless steel flexible universal tube and a PVC integrated probe, resistant to oil corrosion. Thoughtful Design: The probe is equipped with a flashlight for easy oil level observation in the dark and a magnet for attracting impurities in the oil, enhancing the accuracy of the test results. Energy-Efficient & User-Friendly: The tester has an automatic shutdown feature, turning off after 15 minutes of standby. It is powered by just two AAA batteries, making it energy-efficient and easy to use. Application: The brake fluid tester is capable of testing a variety of brake fluids including DOT3, DOT4, and DOT5.1. Specifications: Item Name: Brake Fluid Tester Main Material: PVC, Stainless Steel Power Supply: 3V Range of Testing Fluid: DOT3 / DOT4 / DOT5.1 Lighting: 5M Suction: 1000G Temperature: -30+198C Probe Size: 12*4mm/0.47*0.16inch Package Information: Package Size: 25*10*5cm/9.84*3.94*1.97inch Package Weight: 287g/0.63lb Package List: 1 * Brake Fluid Tester 2 * AAA Batteries 1 * Cleaning Cloth 1 * Manual