Product DescriptionElectrical Switch Detection: the electric pen contacts the contact rod, if the inner core of the wire is not damaged, the LED green light will light up; If it is off, the inner core of the wire is in poor contact.Line Breaking Point Judgment: Detection along the line, LED green light line smooth, LED not bright line broken. Safe and reliable with the rest assured that the use of intelligent sensor chip sensitive4. Wide range of applications: line on-off/zero live wire DC/self-check function, etc.5. Product features: Zero-line detection, on-off detection, intelligent induction, LED high brightnessUser-Friendly: Simple with a clear LED indicatorCompact and Portable: Easy to carry and store.Immediate Results: Fast voltage status indication.Without card packing
