The EverStart Plus 6-24V Auto Circuit Tester is an essential tool for automotive diagnostics designed to help you test fuses light sockets and identify live or broken wires in automotive electrical systems. Whether you re working on 6V 12V or 24V circuits this tester ensures quick and accurate results. Equipped with LED indicators the tester clearly signals the polarity of the circuit. The red LED light indicates positive polarity while the green LED light shows negative polarity allowing you to easily identify the status of your electrical system. Its durable metal probe ensures long-lasting reliability and accurate probing making it a sturdy companion for both professional mechanics and DIY enthusiasts. The compact and portable design allows you to easily store it in your vehicle ensuring you re always prepared for on-the-go diagnostics. This circuit tester runs on a 1x AA battery (included) making it ready for use right out of the box. With a lightweight design (0.25 lbs) it’s easy to handle transport and store.