The main function: 1. BF200 support DOT3, DOT4, DOT5.1<br> 2. BF200 is with high precision sensor<br> 3. BF200 supports mulit type Fluid test<br> 4. BF200 is with replaceable battery design<br> 5. BF200 is with Safe, fast, protable, easy,trust and accurate function. 6. BF200 is with screen<br> Features<br> Attention please:<br> The package doesn't include battery, please buy batteries in your local market, thanks.<br> Why does Brake Fluid Tester is essential tool?<br> 1. What is brake fluid?<br> Brake fluid is a type of hydraulic fluid used in hydraulic brake and hydrauli clutch applications in automobiles, motorcycles, light trucks, and some bicycles.<br> 2. Take precautions and drive with peace of mind.<br> After 1 year of use, the water content of brake oil will reach a higher level. When water content in brake oil reaches a certain level, the force will be weakened and distance will be extended.<br> Advantages of BF200<br> 1. Sound Alarm<br> When moisture content of brake fluid is detected to exceed standard, alarm will be sounded to replace brake fluid.<br> 2. LCD display test result to tell you quality of brake fluid.<br> To DOT3: lower than 1% High Purity<br> To DOT4: lower than 2% Status is acceptable<br> To DOT5 .1: higher than 4% Need to Replace<br> 3. High Resolution Screen<br> Display clear test result even in dark night, as well as in brightest day.<br> Color: Black & grey<br> Material: ABS<br> Size: 6.14x2.17x0.9inch<br> Package Contents:<br> 1 X Car Brake fluid detector test<br> 1 X Manual<br> Only above package content, other products are not included.<br> Note: Light and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.