... *136mm 3.MOQ:4800PCS CE,GS approved electric marking pen YT-0409 ModelSpecifcationTest parameterQTY/CTN(PCS)Dimension( ... (30*20)33.5*20.5*341113 Test range:100V-500V Working line:below 0.5mA ... quality and cheap priceCertification: CE,GSIt can test 100-500V altermating and direct voltage, no battery ... drive, with the function of contact test and induce test. Direct key can test phase line, null line, and ...