VoltSure™ 3-72V Automotive Circuit Tester

VoltSure™ 3-72V Automotive Circuit Tester – Precision, Safety, and Versatility for Every Electrical Diagnosis

The VoltSure™ 3-72V Automotive Circuit Tester is engineered for professional and DIY use, delivering accurate, safe, and efficient voltage testing for a wide range of DC circuits. From quick diagnostics to in-depth troubleshooting, this tester is your reliable partner for vehicle and electrical system maintenance.

✅ Premium Build & Anti-Lost Design
Features a sharp stainless steel probe for easy wire piercing, even in tight spots. The integrated anti-lost silica gel probe cover stays attached to the 140-inch PU spring wire, ensuring it's always within reach. The high-quality spring wire is flexible, lightweight, and durable — superior to standard cables — and includes a large alligator clip for convenient one-hand operation.

✅ Bidirectional Voltage Testing with Clear Indication
Test with confidence: attach the alligator clip to either negative ground or positive pole. Dual LEDs provide clear polarity feedback — red for positive, green for negative — and distinct buzzers (single tone for positive, double tone for negative) ensure accurate interpretation in any setting.

✅ Wider 3–72V Testing Range
Covers a broader range than standard testers, making it ideal for automotive circuits (headlights, taillights, turn signals, fuses) and other DC systems between 3V and 72V.

✅ Accurate, Computer-Safe Digital Readout
The bright LED display offers precise voltage readings with 0.1V resolution. Safer than traditional bulb testers, the microcurrent LED circuit protects sensitive vehicle computer boards while providing clear visibility day or night.