Brake Fluid Tester This tester can be used as a digital brake fluid tester suitable for determining the brake fluid quality. Developed for professional use in car repair shops and maintenance. - Suitable for brake fluids: DOT3. DOT4 - Operating Temperature: -20 ~ 40° С - Power supply: 1x 1.5V AAA battery - Probe Size: 13.2 x 3.5mm - compact brake fluid tester - pen model with handy pocket clip - for measuring H²O (moisture) in brake fluid - with LED indication. with automatic switch-off after 12 seconds - plastic housing - with protective cap for test probes - suitable for DOT-3. DOT-4 and DOT-5.1 brake fluids - protection IP 44 - length 150 mm - 20mm Warranty: 2 years Brake fluids: DOT3 &: DOT4 Operating temperature: -20 ~ 40° probe size: 13.2 x 3.5 mm application: Brake Fluid Tester Dimensions: 150 x 23 x 23 mm