Brake Fluid Tester Auto Car Brake Liquid Digital Tester Pen LED Indicator Accurate Automotive Brake Oil Tester Sound Light Alarm

Good luck with your favorite purchasesHigh-concerned chemical : None Origin : Mainland China Hign-concerned Chemical : None Origin : Mainland China Name : HT662 Brake fluid test pen detection : DOT3/DOT4/DOT5.1 Moisture detection range : 0%~4% Accuracy : ±0.3% Brake oil water content 1 : 0~2%, Can be used normmally Brake oil water content 2 : Less than 2.5%, Still can use Brake oil water content 3 : More than 3%, Need to replace Alarm method : Sound and light alarm Backlight : Red and green backlight Power supply : 2x1.5v AAA batteries(not included)