12V-250V AC&DC Digital Voltage Testing Pen Repair Electrical Inspection Tool Screwdriver Description: 1.LED display: Electric pen with a display、 reading simple、 easier operation2.Quality raw materials: Arbor Material selection of quality CR-V steel、 full hard heat treatment、 effectively improve the service life.3.Insulated handle: With button switch、 easy to control、 use safer4.Operation is simple: A head with two buttons、 direct inspection and testing breakpoints can be freely selected as desired Specification           Material       CR-V Steel           Whether with insulation       Yes           Whether with magnetic       No           Colour       Yellow           Segment specifications       3 mm           Arbor Length       21 mm           Full length       127 mm   Package included: 1 x Voltage Testing Pen