1.Efficient Electrical Measurements: Utilizes NCV sensor innovation and stable inductive sensitivity to provide accurate, contactless voltage testing with a wide AC range of 12 1000V, enhancing safety and versatility 2.Comprehensive Voltage Insights: Visual/audio notifications work in tandem with an LCD percentage screen to track voltage changes, presenting frequency voltage relationships and employing color coded warnings 3.Flexible Adjustment: Achieve reliable results using sensitivity adjustment and auto voltage recognition, designed for low voltage compatibility and enhanced by an intuitive strength display via bar graph visualization 4.Safety Assurance Features: Equipped with an over voltage alert system and double insulation design, this voltage tester ensures user safety, prevents injuries, and provides reliable protection during electrical tasks