... 1.name:test pen electrical 2.Test range:AC/DC100-500V 3.Material:iron/plastic 4.Can be used as screwdriver test pen ... electricalThe usage of voltage test pen:1.to test power line2.to test fuse3.to test lampholder4.to find ... niu, ZAIBA, makel, PHIELYER. Our factory produce ultifuntional voltage tester, test pencil, electroprobe, electrical pen, and export it all over the ...