Item Name: Tester Brake Fluid Tester Digital Car Brake Oil Testing Tool Engine Oil Tester. Size: As the picture shownTest oil type: DOT3,DOT4,DOT5.1Function: Back light, Led light, Sound and light alarm, Low battery alertInput voltage: 9VOperating temperature: -10C-50CFeatures:1. Mini portable, no need to take outside the oil, accurate measurement, extend the life of the car.2. LED display screen can accurately display the results, clearer readings.3. LED lighting makes it easy to face even in dark environments or low light
