Draper 23706 Digital Brake Fluid Tester - Draper Expert 23708, This brake fluid boiling point tester provides accurate measurements of water content and boiling point in brake fluid, which is essential for safety checks and maintenance. It is compatible with Dot 3, Dot 4, and Dot 5.1 brake fluids. Additionally, the tester can measure the temperature of other fluids when used with a thermocouple. It is powered by the vehicle's 12V battery, eliminating the need for extra charging or batteries. The device features a clear digital readout on an illuminated LCD display. It also includes built-in temperature protection, and comes with a syringe, flexible tube, and plastic beaker. Supplied inside a sturdy plastic storage case. Draper Expert 23708 12V LCD Brake Fluid Boiling Point Tester