1、With LCD display, the number of voltage and current can be accurately and clearly displayed 2、The product meets the technical requirements of Class 1 static AC active energy meter in GB/T 17215.321–2008 standard 3、High reliability, small size, light weight, beautiful appearance and practicality 4、Other functions include strong and weak power separation design, two-way energy metering, demand, harmonic measurement, parameter section programming, direct connection 100A, multi-rate energy metering, and event recording 5、It is suitable for rail mounted instruments, sub-metering, and remote monitoring of electrical equipment Features: With LCD display, the number of voltage and current can be accurately and clearly displayed. The product meets the technical requirements of Class 1 static AC active energy meter in GB/T 17215.321-2008 standard. High reliability, small size, light weight, beautiful appearance and practicality. Other functions include strong and weak power separation design, two-way energy metering, demand, harmonic measurement, parameter section programming, direct connection 100A, multi-rate energy metering, and event recording. It is suitable for rail mounted instruments, sub-metering, and remote monitoring of electrical equipment. Specifications: Condition: 100% Brand New Material: Plastic Type: Without communication, With communication (Optional) Size: DTS1946: approx. 26*90*63.5cm / 10.2*35.4*25in DTS1946 Accuracy class Voltage/current: 0.5 level; Power/active energy; Level 1 (default), 0.5S level; Reactive energy: Level 2 Rated voltage 3x220/380V Input Current Direct input 5(100)A Input via CT 1.5(6)A Frequency 50/60 Hz Wiring mode three-phase four-wire Voltage range 0.8Un - 1.2Un Consumption voltage circuit consumption < 2VA current circuit consumption < 0.1VA Start current direct input 0.004Ib input via CT 0.002In Energy pulse One optoelectronic isolation output,pulse width（80±20%）ms RTC error ≤0.5s/day RS485 communication interface Modbus-RTU or DL/T645 communication protocol, baud rate up to 9600bps, higher rate can be customized. Size 26x90x63.5 IP protection IP50 (panel) / IP20 (housing) operating temperature (-10 - 55) ° C storage temperature (-25-70) ° C Relative humidity （5~95)% (no condensation) Package list: 1 * Electric Power Meter 1 * English Instruction Manual Note: 1.Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.