Lisle 28830 Digital Circuit Tester 3-48V

Heavy-Duty Circuit Tester with Digital LCD Display to Accurately Show DC Voltage.Operating range of 3-49 volts DC to work on most vehicle electrical systems. 3600 visibility of polarity. The red light indicates positive polarity green indicates negative polarity. Long 12ft. coil cord and heavy-duty alligator clamp for secure connections. The probe is insulated to prevent the possibility of shorting the side of the probe to other components.