Feature: 1. Universal multi-function monitor high performance, accuracy power factor monitor, real-time measurement, harmonic measurement, positive and negative active/reactive energy measurement, time-sharing counting, timing mark, power quality analysis. 2. Features such as AVE display, event recording, and demand, with rich input and output port to monitor field device conditions. 3. Integrated RS-485 communication port, integrated with various intelligent power distribution systems and power management systems to share rich data. NITOR data and power quality data. 4. Multi-functional, most competitive, can directly replace the general power transmission, metering, energy metering and related auxiliary devices, with a wide range of applications, such as energy management systems, power monitoring systems, industrial and mining enterprises, public places, intelligent buildings and distribution board, etc. 5. High stability and low failure rate,the mean time between failures is more than 50000h. Specification: Item Type:Electric Energy Meter Specifications: AC 450V 5A Overload: Current: Continuously 1.2 times / s, Instantaneously 10 times / s. Voltage:Continuously 1.2 times / s, Instantaneously 2 times / s. Frequency: 45-65Hz Accuracy Level: 0.5 Display: LED Display, Range from -1999 To 1999 Power Supply Voltage: AC220V Communication: RS485 Power Consumption: <5VA Insulation Resistance: ≥100MΩ Isolation Voltage: 2kV/1min (Rms) Between Power/Input/Output Mean Time Between Failures: ≥50000h Temperature: Work -10 ~ 55 ° C, Storage -25 ~ +70 ° C Humidity: ≤93%Rh, No Dew, No Corrosive Gas Altitude: ≤2000m Package List: 1 x Meter 1 x Users Manual Note: This device must be installed and maintained by a professional; The input signal and power must be turned off before performing internal or external operation of the unit; Always use a suitable voltage detection device to verify that there is no voltage on each component; The electrical parameters of the device must be within the rated range; The following conditions will result in damage to the unit or abnormal operation of the unit: Auxiliary power supply voltage is out of range The distribution system frequency is out of range command current, and the voltage input is incorrect. With electrical pull out communication plug Do not connect terminals as required