Features: Experience the Intelligent Voltage Tester Pen a reliable tool for quickly detecting voltage, current, and resistance, ensuring safe use of electrical appliances. Designed for the US market, this voltage tester pen features an display, providing clear measurement results. Its compact size makes it convenient to carry and use. Suitable for home users, electricians, and maintenance personnel, this multifunctional tester pen is perfect for measuring voltage, current, and resistance. Whether troubleshooting circuit faults, installing appliances, or repairing household devices, this versatile voltage tester pen ensures the safety and proper functioning of your electrical equipment. Get the Intelligent Voltage Tester Pen today and enjoy the convenience and accuracy it brings in maintaining the safety and performances of your electrical devices. Specifications: Material: ABS Battery: 1xAAA Battery Needed(NOT Included) Size: Approx. 197x35x30mm/7.76x1.38x1.18in Package Includes: 1 Set Outlet Tester Pen note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.