Hign-concerned Chemical:NoneItem Weight:0.03kgItem Height:2cmItem Width:2cmItem Length:15cmOrigin:Mainland ChinaCertification:CEProduct Description Brake Fluid Tester is used to test the quality of brake fluid, the result of the percentage of water content in the brake fluid is shown by the number of 5 LEDs lit on the tester.FT123 Brake Fluid Tester determines the change of moisture in the brake fluid according to the change of conductivity, and clearly shows the degree of water content through the light emitting diode.High water content will lead to a lower boiling point, which will affect the performance of the brakes. The red light indicates that the brake fluid needs to be replaced, the green light indicates that it is in good condition, and the yellow light indicates that it is in fair condition. (New upgraded gold probe is more accurate than the original silver probe, the pen body quality is more corrosion and wear-resistant than the original, the new packaging comes with instructions) Performance Characteristics Powerful, simple operation; accurate measurement, safe to use; Test all brake fluids; with automatic shutdown function; Can test DOT3/4/5 brake fluid. Product indication description Green: power OK/no water content; Green/Yellow: water content less than 1%; Green/Yellow/Yellow: water content close to 2%; Green/yellow/yellow/red: water content close to 3%, brake fluid replacement recommended; Green/Yellow/Yellow/Red/Red: water content higher than 4%, dangerous, must replace the brake fluid immediately. Note: The above data is for reference only; Battery: 1 x 7 AAA battery, the battery cover is opened in the direction indicated by the arrow on the test pen. How to use Step 1. Press the button to turn on the brake fluid tester. The green light should come on. If the light does not come on, the battery may need to be replaced. Step 2. Unscrew the brake fluid reservoir cap and remove the brake fluid tester cap. Step 3. Dip the test probe into the brake fluid and the LED light will indicate the percentage of water in the brake fluid. Step 4. Remember to tighten the brake fluid reservoir cap when the test is complete. Step 5. The tester will automatically turn off after 12 seconds of inactivity. Attention 1. Wash the test probe with clean water after each use of the tester; 2. Do not expose the brake fluid to air for a long period of time, as brake fluid is highly absorbent. Package Includes 1 x FT123 Brake Fluid Tester (without AAA battery )