Product Name: Brake Fluid Test Pen

The brake fluid test pen probe is made of high-quality metal material to prevent oil and oxidation. The shell is made of matte black plastic, which provides better slip resistance and an excellent overall feel.
This product can quickly detect the status of your car's brake fluid and remind you to replace it when necessary, thereby preventing traffic accidents and increasing your comfort and safety.
Features:
1. Easy to use, small size, easy to carry.

2. Metal probe: oil and oxidation-resistant, not easy to corrode.

3. Shell: better slip resistance, good body structure.

4. 5 The LED displays show the water content in the brake fluid.

5. LED indicators show the water content in the brake fluid in green, yellow, and red. Shows the water level clearly via LED. High water content results in a lower boiling point and affects braking performance. Red means the brake fluid needs to be replaced immediately, green means good condition, and yellow means fair condition but will be replaced soon.

1. Green LED=water content in brake fluid H2O

2. yellow LED=water content in brake fluid H2O=1.5% to 3%, can continue to use and test again after six months.

3. red LED = water content in brake fluid H2O>3%, can not continue to use, need to replace the brake fluid red LED: replace the brake fluid.