OTC/Bosch 3890 BRAKE FLUID SAFETY METER

Powered by the vehicle battery; won't operate if connected to the wrong polarity. On-screen prompts lead you quickly through testing. You'll find the minimum boiling (vaporizing point) along with minimum recommended levels for various types of brake fluid. For DOT 3, DOT 4, and DOT 5.1 fluids. No consumable test strips - test every vehicle that comes into your shop.