... .name:Voltage Tester 2.Test range:AC/DC100-500V 3.Material:iron/plastic 4.Can be used as screwdriver 5.fast delivery Voltage ... TesterThe usage of voltage test pen:1.to test power line2.to ... brands: Ding niu, ZAIBA, makel, PHIELYER. Our factory produce ultifuntional voltage tester, test pencil, electroprobe, electrical pen, and export it all over ...