Sonic Digital Brake Fluid Tester

It is used to digitally check the quality of brake fluid.
Designed for professional use in workshops.
With 5 LEDs in total.
An LED indicates the battery quality.
LEDs 1 and 2 indicate between 1% and 2% water (acceptable) and LEDs 3 and 4 indicate between 3% and 4% (unacceptable).
Easy to use.
- Suitable for brake fluids: DOT3, DOT4
- Operating temperature: -20 ~ 40 °C
- Power supply: 1 x 1.5V AAA battery
- Includes battery
- Probe size: 13.2 x 3.5 mm
- Dimensions: 150 x 23 mm
- Weight: 58 grams.
Note: Do not expose DOT 3/4 brake fluid to the atmosphere for extended periods of time, as it is highly hygroscopic (absorbs water). It is designed to be hygroscopic, so changing the brake fluid ensures that all water is also removed from the brake system.