This unit is the best electrical tester for reducing diagnostic time in automotive electrical systems. After a simple hook-up of the unit to the vehicle battery, automotive technician can conduct a positive or negative battery current to the tip by rocking the rock switch forward or backward. The unit can be used to measure dc voltage and test for continuity or for bad ground contacts. It can also be used to follow and locate short circuits.It is short-circuit protected, its long cable allows you to perform test easily. The unit is powered by the vehicle battery directly.

 Portable case and carton box, please see picture for more detail.

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 Zhangzhou Eastern technology Group was set up in1993.it is a "State High and New Technology Enterprise " Which specializes in research,manufacture and sales of test & measurement instrpment. the products are expoted to more than 70 countries word-wide,it is one of biggest manufacturers of test & measurement instruments ih China. It has undertaken more than 20 national &provincial projects, and obtained more than 100 national patents. It gets ahead in technology and products, and provides worldwide customers with cost-effective test & measurement instruments.