Features: The Transmission Fluid Tester features advanced pressurized detection systems for precise measurements of DOT 3/4/5.1 and specialty brake fluids, with a 2.8" backlight LCD ensuring accuracy in any lighting condition. Engineered with a silicone gripped ergonomic body and lightweight construction, this tester enables single handed operations during extended diagnostic. Professional mechanics and automotive technicians rely on its double detection modes to efficiently assess fluid quality across multiple vehicle brands in repair shops or field service scenarios. Designed for challenging environments, the corrosions resistant 304 stainless steel probe with 260mm flexible hose reaches confined spaces while maintaining visibility under direct sunlight or nighttime conditions. Combining high sensitivity sensors technology with multiple detection modes, this professional tool delivers laboratory grade results for comprehensive brake fluid quality assessment across vehicle types. Specifications: Component: Plastic Size: 2.8inch backlight screen Operating temperature: -10°C-60°C Power Supply:4Pcs 1.5V Batteries (not included) Note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item. Package includes: 1Set Oil Tester