Testboy TB 55 Operating Instructions Manual page 23

Display
The display consists of three
LEDs that indicate water in the
fluid.
Red:
A red LED indicates that the
brake fluid should be changed
immediately.
Warning!
Unsafe!
Yellow:
The proportion of water is al-
most unsafe: the brake fluid
should be changed soon.
Green:
The proportion of water in the
brake fluid is correct.
WARNING
Rinse the test probe with tap water immediately af-
ter each use and dry thoroughly. Always remem-
ber to put the cap back on. Make sure that no
brake fluid residue remains on the test probe or
the tester.
®
Testboy TB 55
Operations
Red
Yellow
Green
White
White
23