Testboy TB 55 Operating Instructions Manual page 20

Operations
Operations
Thank you for choosing the Testboy
55 is the latest innovation in our popular Testboy
The test probe is a digital brake fluid tester used to determine
the quality of brake fluid (DOT 3, 4 and 5.1). It is designed for
use in professional workshops and service departments.
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TB 55. The Testboy
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TB 50 line.
Testboy
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TB
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TB 55