Specification: Display: HD LCD color display Dimensions: 54X80X64MM Display color: red orange yellow white green blue Protruding size: 45X16MM Installation method: rail type Measurement accuracy: 1%2 words Function test: AC voltage, current, power, frequency, electric energy, power factor Measuring speed: 2 times per second User Guide: D52-2066 guide rail type digital display multi-function meter simultaneously displays 6 parameters such as AC voltage, AC current, active power, power factor, frequency and electric energy on the instrument. The meter uses a color full-view high-definition LCD display to display the measurement results. Technical Indicators: 1.Accuracy: 1%2 words 2.Measuring Range: AC voltage: AC 80.0-300.0V or AC 200.0-450.0V AC Current: AC 0-100.0A, the current resolution is 0.01A. Frequency: 45.0Hz 65.0Hz Power Factor: 0.00-1.00PF Electric Power: 0-450000W, the electric power resolution is 0.1W when measure electric power between 0-9999.9W, otherwise the electric power resolution is 1W. Electric Energy: 0-99999kwh, the display of electric energy resolution is 0.01kwh when measure electric engery between 0-999.99kwh, the display of electric energy resolution is 0.1kwh when measure electric engery between 1000.0-9999.9kwh and the display of electric energy resolution is 1kwh when measure electric engery larger than 9999.9kwh 3. Measuring speed: about 2 times per second 4. Dimensions: 54mm80mm64mm 5. Installation method: rail type