Digital Brake Fluid Tester, 0-4% Car Brake Fluid Tester for DOT3 DOT4 DOT5.1 Backlight Indicator with Buzzer Alarm, Auto Power-Off, Data Hold Moisture Detection for Car, Motorcycle, Truck Safety Tool

Digital Brake Fluid Tester, 0-4% Car Brake Fluid Tester for DOT3 DOT4 DOT5.1 Backlight Indicator with Buzzer Alarm, Auto Power-Off, Data Hold Moisture Detection for Car, Motorcycle, Truck Safety Tool

• ✔ Precision Moisture Detection: Accurately measures 0-4% moisture content in DOT3, DOT4, and DOT5.1 brake fluids with ±0.3% error range, ensuring reliable results for safe braking performance.
• ✔ Smart Visual & Audio Alerts: Color-coded LED backlight + buzzer alarm instantly warns when fluid needs changing: Green (Safe to use; 0–2%), Yellow (Change soon, slow beep; 2–3%), or Red (Critical, change immediately, fast beep; 3%+).
• ✔ Easy Operation & Reliable: Features Data HOLD function to freeze readings, auto power-off (5min), and low battery indicator perfect for mechanics, DIYers, and garages.
• ✔ Compact & Durable: Works in 0–40°C, stores at -10–50°C (<=95% humidity), and functions up to 2000m altitude ideal for cars, motorcycles, trucks.
• ✔ Proactive Brake Maintenance Tool: Ensures safety with lab-grade +/-0.3% accuracy (full probe immersion required), DOT3/4/5.1 switching, and auto power-off. Perfect for routine checks, pre-trip inspections, or used vehicle evaluations to prevent costly brake failures.