Includes built in mechanism to damage from short circuits and excessive current, ensuring safe use during all electrical applications 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 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 electrical multimeter tasks like home and industrial maintenance Automatically identifies alternating current and direct current electric potential types and produces a auditory warning upon detection, facilitating quick electric potential testing and user, enhancing potential difference tester efficiency, Manufacturer: Ahmany