... accuracy 3. Portable and handheld 4.Dual-channel input measuring I. IntroductionDF-200 Double Clamp Digital Phase Meter is special designed for voltage ... , it is in high-precision, low price, portable hand-held, dual-channel input measuring.Easy to measure the phase between U-U ... , 2×200g6. Storage ConditionsTemperature, -10°C~50°C DF-200 Dual-clamp Digital Phase Meter