The High Brightness AC Voltage Detector Pen is a practical tool for identifying the presence of AC voltage in outlets, switches, wires, and electrical fixtures. Featuring non-contact sensing technology, it allows users to check electrical circuits without direct contact with conductors.Equipped with a bright LED indicator and audible alert system, this tester provides clear feedback when voltage is detected. Its compact pen-style design makes it convenient for electricians, maintenance personnel, technicians, and homeowners who perform routine electrical checks.Suitable for everyday troubleshooting and electrical inspections, this voltage detector pen offers a portable and easy-to-use solution for identifying energized circuits and testing electrical installations.