Brake Fluid Tester Pen-Accurate Moisture Detection for DOT3,DOT4,DOT5.1-Rapid LED Alert (Red/Yellow/Green) for Brake System Safety,Easy Probe Design

【Instant Brake Fluid Safety Check in 3 Colors】Never guess about your brake safety again! Our tester gives you a clear, visual result in seconds. The bright LED lights instantly show: GREEN for good, YELLOW for caution, and RED for immediate replacement. Quickly know if your brake fluid's moisture level is compromising your safety. 【Precision Engineered for All DOT3, DOT4 & DOT5.1 Fluids】Designed for universal use, this professional tool accurately tests all common brake fluid types (DOT3, DOT4, DOT5.1). The highly sensitive stainless steel probe and advanced chip ensure reliable readings, helping you maintain the optimal boiling point and performance of your brake system. 【Effortless to Use for Every Car Owner】No expertise needed! Simply dip the multi-directional probe into the brake fluid reservoir. Its plug-and-check design and automatic standby shutdown make it incredibly user-friendly. Perfect for DIY enthusiasts, home mechanics, and professional workshops alike. 【Protect Your Investment & Ensure Driving Safety】Contaminated brake fluid is a hidden danger. Regular testing can prevent costly brake repairs and, most importantly, accidents. This portable tool is your first line of defense, giving you the confidence that your vehicle's most critical safety system is in top condition. 【Complete Kit with 1-Year Warranty】Includes the tester pen and a protective case. (Note: Battery not included for safer shipping and longer shelf life). We stand behind our product with a 1-year hassle-free warranty and dedicated customer support.