- Digital Voltage tester,voltage detector,electric tester - CE,CCC,CQC,ISO9000 Certificated Digital Voltage tester,voltage detector,electric testerSpecification:*AC/DC Voltage Tester;*Testing Range:12,36,55,110 to ... "pen" size;*Inductance Break-point for continuity check.Any further enquiry please contact me by call or by email. Digital Voltage tester,voltage detector ...