Atd Tools Heavy-duty 3-30v Cordless Circuit Tester

Features and Benefits:

• Features
• 3-30V detection range of DC voltage
• Bi-directional polarity testing: Power and Ground
• Dual color LED indicates red for power and green for ground on 6V, 12V and 24V systems
• Compact size for use in tight access areas
• Computer safe
• For use on automotive, commercial vehicle and equipment repair



The ATD-55033 is a high-performance, cordless diagnostic tool designed for rapid electrical troubleshooting across a wide 3‐30V DC range. Its standout feature is bi-directional polarity testing, which uses a dual-color LED to immediately distinguish between power (red) and ground (green) on 6V, 12V, and 24V systems. Engineered to be computer safe, this compact tester allows technicians to safely probe sensitive automotive, commercial vehicle, and heavy equipment electronics in tight access areas without the hassle of a ground lead.