The Sealey VS0275 Brake Fluid Tester Boil Test works on DOT 3, 4, 5 and 5.1 specification fluids The Sealey VS0275 is a Brake Fluid Tester Boil Test for the approved method of testing the water content of brake fluid as just 3% of moisture can lower the brake fluid boiling point by over 100°C. This unit incorporates a heater element, LCD display and a power lead for use on 12V dc power supplies. Features: Works on DOT 3, 4, 5 and 5.1 specification fluids Supplied in carry-case with full operating instructions The approved method of testing the water content of brake fluid Just 3% of moisture can lower the brake fluid boiling point by over 100°C The best way to detect this small water content is to measure the boiling point of the fluid The unit incorporates a heater element, LCD display and a power lead for use on 12V dc power supplies Specification: Model No: VS0275