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Four window display: V, A, P, Apk / PF / F
Input voltage: 1V~300V
Input Current: 0.2mA~3000mA
Power range: 0.001W~900W
Accuracy: ± (0.4% reading + 0.1% range)
Range switching: automatic
Power factor: 0-1
Frequency range: AC: 15Hz~650Hz
Communication method: RS232
Upper and lower limit settings: V, A, P, PF
Local electricity: 110V / 220V switchable