Brake Fluid Tester LED Pen- Car Vehicle Auto Testing Tool

• LEDs indicating the water in the brake fluid.
• Light indicates that the battery is OK, no replacement.
• Light indicates that moisture content of brake oil less than brake fluid has a good performance, and ease of use.
• Light indicates that moisture content of brake oil less than brake fluid can be continued to use.
• Light indicates that moisture content of brake oil less than proposed to replace brake flul.

LEDs indicating the water in the brake fluid:

Light indicates that the battery is OK, no replacement

Light indicates that moisture content of brake oil less than 1% , brake fluid has a good performance, and ease of use.

Light indicates that moisture content of brake oil less than 2%, brake fluid can be continued to use

Light indicates that moisture content of brake oil less than 3% , proposed to replace brake fluL

Light indicates that moisture content of brake oil less than 4%, brake fluid should be replaced immediately.

Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understanding.