Audible and Visual Alerts for Fast, Confident Testing Equipped with a powerful 100decibel buzzer and a bright indicator light, this continuity tester makes it easy to confirm electrical connections instantly. The dual alert system ensures reliable results in noisy environments or lowlight conditions, helping you work faster and with confidence. Versatile Applications Across Electrical Projects Designed to check the continuity of wires, cables, PCB board connections, switches, and other electronic components, this tool is ideal for electricians, technicians, and DIY users. Whether diagnosing a faulty circuit in a home appliance, verifying connections on a custombuilt PCB, or troubleshooting vehicle wiring, it delivers dependable performance for a wide range of tasks. Battery Powered for Convenience and Efficiency Powered by a builtin 9V battery, this tester is ready to use whenever you need it. The battery is easily replaceable by opening the cover, and with zero power consumption when not in use, it offers extended battery life, ensuring longterm readiness without unnecessary drain. Compact and Durable Design for Portability Housed in a sturdy white ABS casing measuring just 93 x 55 x 30 mm, this continuity tester is built to withstand regular use while remaining lightweight and portable. Its compact size fits easily in a toolbox, pocket, or workbench drawer, so it is always within reach for quick testing. Key Benefits Clear audible and visual alerts make it easy to confirm connections quickly Suitable for wires, cables, PCB boards, switches, and electronic devices Batterypowered with longlasting life and easy replacement Durable ABS casing protects the unit from everyday wear Lightweight and portable for onsite or workshop use Practical Use Scenarios 1. Locating a break in household extension cords before . 2. Verifying flawless soldering on PCB boards during assembly or troubleshooting. 3. Checking vehicle wiring connections to ensure proper functionality after maintenance.