- High accuracy clamp head for AC and DC large current measurement, with a maximum input current of 100 A for reliable, precise readings. - Back clip design for portability, allowing you to hang the tool on a belt or in a pocket for quick access. - Detection mode enables voltage detection, can distinguish zero firewire, and supports one-handed operation for safer and faster workflow. - Pen holder design on one side provides convenient storage for a pen or probe, improving ease of use and efficiency in any environment. Two to three practical use scenarios - Electrical installation and panel maintenance: measure currents up to 100 A in AC or DC circuits while simultaneously checking for voltage, with one-handed operation to keep both hands free for wires and tools. Clip the tool to your belt for hands-free transport on the job. - On-site equipment service and troubleshooting: carry the tool on your person using the back clip, quickly verify voltage and current in various equipment, and use the pen holder to keep your testing pen readily available for rapid checks in dynamic work environments. - DC circuit diagnostics in automotive or industrial settings: use the clamp to monitor DC current during system checks, leverage detection mode to confirm presence of voltage, and maintain efficient workflow with one-handed operation and convenient pen storage.