Feature: 1. Better Visual Experience: Color LCD HD display, 178° wide viewing angle, no dead angle, with backlight function, this AC power meter single phase can be clearly seen no matter day or night. 2. ABS Material: This single phase power consumption meter is made of ABS flame retardant material and sensitive chip to ensure the safety of use. 3. 6 in 1: The DIN rail digital multifunction meter is a meter that displays 6 parameters such as AC voltage, AC current, active power, power factor, frequency, and electrical energy on the meter. 4. Easy to Use: If you need to reset the meter measurement (when measuring from zero), long press the RESET button on the right side of the meter panel for 5 seconds until the meter displays 0, then release the button, at which time the meter starts measuring from zero. 5. Auto Save Data Function: When the measurement voltage is disconnected or power failure, the meter will automatically save the current test data, when reconnecting the measurement power supply, the meter will continue to accumulate on the original saved data. 6. Wide Applications: Suitable for industry, power plants, automation equipment, DOS systems, electromechanical equipment, etc. Specification: Specifications: Type: External transformer Model: D52-2066 Material: ABS Measurement Accuracy: 1%±2 words Alternating Current: AC 0-100A, current display resolution is 0.01A Power Frequency: 45.0Hz-65.0Hz Power Fator: 0.00-1.00PF Active Power: Measuring range is 0-45000W, the display resolution between 0-9999.9W is 0.1W, the rest is 1W Electricity: Measurement range is 0-99999kwh, 0-999.99kwh minimum display resolution is 0.01kwh Measuring Speed: About 2 times per second Mounting Method: Rail type Item Size: 80 * 54 * 64mm / 3.15 * 2.12 * 2.51in Item Weight: 122g / 4.30oz Package Weight: 143g / 5.04oz Package Size: 9 * 7 * 6cm / 3.54 * 2.75 * 2.36in. Package List: Package List: 1 * Watt-Hour Meter 1 * User Manual (English)