... parameters;2) 240*160 dot big LCD for display.3) Two On-Off Input / Output, with remote control RS485 Modbus communicatoin ... Input and Output signal;5) True effective value measuring;6) Two alarm output for Voltage, Current, Power Factor, Active Power, ... .2 times Instantaneous: 2 times/10SConsumption of voltage <1VA (each phase)Voltage imdepance ≥ 300K Ω Voltage accuracy RMS measure, accuracy class 0 ...