- Tools & Garage Gear
- Ignition, Electrical, and Diagnostics
- Lisle Digital Heavy Duty Circuit Tester
Lisle digital circuit tester is a heavy-duty tester with Digital LCD display to accurately show DC voltage. Tests 3-49 volts DC to work on most vehicle electrical systems with 360° visibility of polarity. The red light indicates positive polarity, green indicates negative polarity. Includes a 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.