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Non-contact Audible and Visual Phase Tester for Low-Voltage Phase Sequence

Non-contact Audible and Visual Phase Tester for Low-Voltage Phase Sequence

【Reverse Phase】The 4 phase detection LEDs light up sequentially in a counterclockwise direction;. 【In-Phase】All 4 phase indicator lights illuminate sequentially in a clockwise direction;. 【Missing Phase】The L1, L2, or L3 LED does not light up;.