VDIAGTOOL V200 R(+20ft extension cable) Functions: ????【ACCURATE ELECTRICAL TESTER KIT】 ????【COMPONENT ACTIVATION】 ????【IDENTIFY POLARITY QUICKLY】 ????【CONTINUITY, SENSOR/SIGNAL CIRCUIT TEST】 ????【4 WORKING MODES & OVERLOAD PROTECTION】 ????【20FT EXTENSION CORD TO WORK ANYWHERE AROUND 】 ????【TOTAL 40FT CORD & BUILT-IN FLASHLIGHT】 ????【PROFESSIONAL AFTER-SALE SERVICE】.
