Main Features:- Use for checking brake fluid quality， five LED lights to indicate percentage of water in the brake fluid.
- Automatically power off after 12 seconds of inactivity.
- Light weight， mini size， easy to use， portable to carry.

LED Indications:
- Green: None.
- Green / Yellow: Less than 1pct.
- Green / Yellow / Yellow: Approx. 2pct.
- Green / Yellow / Yellow / Red: Approx. 3pct. ( Time to change brake fluid ).
- Green / Yellow / Yellow / Red / Red: Approx. 4pct ( Change brake fluid immediately ).

Notes:
- Replace the battery if the green LED light no longer lights up after you press the button.
- Wash the test probe with tap water after every use.
- In case of skin contact with brake fluid， thoroughly wash the affected skin or clothing with water.
- Do not expose brake fluid to the atmosphere for a long time as it is highly hygroscopic.
Package weight: 0.097 kg
Product Size(L x W x H): 15.50 x 2.50 x 2.00 cm / 6.1 x 0.98 x 0.79 inches
Package Size(L x W x H): 23.00 x 14.00 x 3.00 cm / 9.06 x 5.51 x 1.18 inches Package Contents: 1 x Car Brake Fluid Tester