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Small Size Electroprobe Detector Dual-Use Test Pencil Household Large DC Electrician Pen Detection Power Line Hardware Tools
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Electroprobe non-contact test, all external insulation to ensure safety. The operation is simple. You only need to touch the pen head to the wire, and the red light is on and there is a half sound prompt. You can know that there is a voltage on the line, and the detection voltage does not need metal contact, so it can be pinned on the clothes pocket.
