Features: The ZTDB02 voltage tester pen is a high precise electrical tool designing for quick and accurate voltage and current detection, making it a essential addition to any toolkit. Featuring automatic voltage and current recognition, this tester displays clear readings and is easy to operate, crafted from ABS+PC materials for long lastings use. For electricians, repair technicians, and DIY enthusiasts who frequently measure voltage and current, ensuring safety and efficiency in their work. Perfect for use in homes, offices, and industrial setting, the ZTDB02 can measure outlets, switches, wire, batteries, and various electrical devices. With its wide application across household, commercial, and industrial environment, this voltage detector pen is a versatiled instrument that enhances your electrical testing capabilities. Specifications: Component:ABS+PC Size:Approx.156x28mm/6.14x1.10inch Styles:DB02/DB03 Color:Black Package Includes: 1pcs Current Measuring Tool(Without Battery) note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.