Features: This intelligent transducer pen multimeter utilizes advanced detection technology for accurate electric potential, current, and resistance measurements, ensuring consistent conclusions in electrical testing applications, perfect for intelligent transducer pen multimeter tasks. Automatically identifies alternating current and direct current electric potential types and produces a auditory warning upon detection, facilitating quick electric potential testing and user safety, enhancing potential difference tester efficiency. Features a large LCD screen for easy reading of data in various conditions, enhancing observability and convenience for electric tester use, ideal for electrical multimeter operations. Supports multiple measurement approaches including electric potential, current, frequency, and resistance, ideal for diverse electrical multimeter tasks like home and industrial maintenance. Includes built in safety mechanism to prevent damage from short circuits and excessive current, ensuring safe use during all electrical applications. Specifications: Component: plastic Size:Approx.184.5x25.7x29.2mm/7.26x1.01x1.14inch Styles:A/B Battery: 2pcs 3V 7th batteries (need to bring your own) Package Includes: 1 Set Intelligent Induction Electrical Tester(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 color.