หมวดหมู่ : ETCR Electronic Technology , 
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Product Main Function
1. Phase sequence detection (positive phase, anti-phase, default phase), live line inspection, simple electrical inspection, fire line identification, default phase judgment, broken line location search, DC line breakpoint detection, line maintenance.
2. Phase Sequence State: dynamic acousto-optic indication
3. Line voltage: 70~1000V
4. Clamp wire diameter: Φ10mm~Φ40mm