Heavy-Duty Straight Cord Circuit Tester - OTC Tools and Equipment

The OTC 3634 Heavy-Duty Straight Cord Circuit Tester is a professional-grade diagnostic tool engineered for the demanding environments of automotive and industrial service. This essential tool provides technicians with quick, accurate go/no-go voltage checks on 6V and 12V DC systems, facilitating the rapid identification of electrical faults such as shorts, opens, and poor connections across a wide range of vehicles and equipment.

Key Features

• Professional-Grade Durability: Built to withstand harsh daily shop and fleet conditions, featuring a rugged straight cord, a robust stainless steel probe, and a solid ground clip for consistent, reliable performance.
• Versatile 6V and 12V System Compatibility: Offers comprehensive diagnostic capabilities for both traditional 6-volt and modern 12-volt electrical systems found in automotive, light truck, heavy-duty truck, and off-road equipment.
• Clear, Replaceable Indicator Bulb: Delivers bright visual feedback of voltage presence, with a serviceable design that allows for easy bulb replacement to maximize tool uptime and extend service life.
• Extended 5-Foot Straight Cord: Provides ample reach for probing across engine bays and under dashboards, minimizing tangling and snags often associated with coiled cords.
• Ergonomic Slim Handle: Engineered for a comfortable and secure grip, enabling precise control when working in tight spaces and on complex electrical connectors.

Applications

The OTC 3634 is an essential tool for rapidly verifying power and ground, tracing wiring faults, and confirming circuit continuity during routine diagnostics and complex repairs. It is well-suited for:

• Checking fuses, switches, relays, and connectors within automotive and light truck electrical systems.
• Locating shorts, opens, and compromised grounds in wiring harnesses on fleet vehicles and heavy equipment.
• General electrical troubleshooting across professional repair shops, service bays, and mobile service operations.

Specifications

• Model: OTC 3634
• Voltage Range: 6V and 12V DC systems
• Cord Length: 5 ft straight heavy-duty cord
• Weight: 0.5 lb
• Dimensions: 9.75 x 2.8 x 2 in
• Probe: Stainless steel with alligator clip ground