SATRA S-5LFT is brake fluid tester compact pen style tool, moisture/ water indicator. Electronic brake fluid tester for use in professional car services. Fluid quality is determined by 5 LEDs, measures percentage of water in brake fluid. Should be checked on regular basic for safety. Can be use on Dot 3, Dot 4, Dot 5.1 fluids and can't on silicone based Dot 5. Battery 1 x AAA included.

GREAT QUALITY FOR THE BEST PRICE!

Specification:

- green - battery OK - no water found

- yellow - less than 1% water - no action necessary

- yellow/ yellow - 2% water found - check regularly

- yellow/ yellow/ red - 3% water found - brake fluid should be  changed

- yellow/ yellow/ red/ red - 4% water found - brake fluid must be changed urgently - DANGER!