... a range of hand held, single and three phase portable working standards, ideal for on site ... 3 units available: 0.1%, 0.2%, 0.5%.* Display of: Voltage, Current, Phase angles, Active Power, Reactive ... decimal point.* Circuit type: 3 phase 4 wire, 3 phase 3 wire, 1 phase 2 wire, others on request.* ... General: Frequency range 45 to 65 Hz Phase angle ...