หมวดหมู่ : ETCR Electronic Technology , 
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Product Main Function
1. High voltage phase detecting, frequency, phase, phase sequence, electricity testing
2. The results of the phase detecting are displayed by a wireless receiver and with a corresponding voice prompt.
3. Phase Range:0.0°~360.0°
4. Frequency Range:45Hz~65Hz and 215°~265°
5. Line Voltage:200V~220kV