Testboy 55 Brake Fluid Tester DOT 3 4 and 5 1 Testboy Testboy 55 P The Testboy 55 is a Brake Fluid Tester that will check quickly and accurately the water content in brake fluids DOT 3 DOT 4 and DOT 5 1 Thanks to various measuring ranges user friendly operation and compact design it is suitable for use in automotive truck and motorcycle workshops P P What s in the Box BR 2x AAA batteries BR Instructions for use P Testboy 55 Brake Fluid Tester DOT 3 4 and 5 1
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