100-500V LED Electric Test Tester Pen Screwdriver Multifunctional Household Test Pencil Voltage Detector Probe

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Specification:

The self-test function:

Usage: when using self-testing sign in one hand and take the tip in one hand touches the touch electrode.
Line On / off detection:
Usage: first-hand contact pin zero line, the other hand on the electric pen touch pole, written contact pin FireWire.
Phenomenon: On: indicates that the loop line is normal, there is no line breakage; unlit: line marked off here somewhere, did not turn on. Line-off detection: electrician maintenance staff are widely used in rice cookers, computers, washing machines and other daily household electric plug line testing equipment.
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