Yuav ua li cas txheeb xyuas Zero Hluav Taws Xob ntawm GVDA GD110A Voltage Detector Continuity Voltage Display Electric Tester Screwdriver AC/DC 12-300V Voltage Indicator Breakpoint Finder
Thaum qhov kev sojntsuam muab tso rau ze rau ntawm qhov hluav taws xob AC, lub suab buzzer thiab qib voltage yuav qhia rau ntawm cov zaub. Qhov siab dua qhov voltage, qhov nrawm dua lub suab buzzer. Ib yam li ntawd, "HI" ntawm cov zaub qhia tias muaj hluav taws xob siab, "U" qhia tias tsis muaj hluav taws xob. Nrog rau txoj haujlwm no, koj tuaj yeem sib txawv ntawm Null thiab Live xov hlau, lossis nrhiav qhov tawg ntawm cov hlau.
