Ⅰ. Energy consumption meter with display and overload alarm. Before using for the first time, reset the wattmeter. To do this, press and hold the green RESET button on the housing, under the display, for about 10 seconds. Ⅱ. Operating temperature: 0 ~ 50 °C Ⅲ. Dimensions: 75 x 147 x 75 mm (W x H x D) Ⅳ. Power supply: 230V AC Ⅴ. Frequency: 50Hz Ⅵ. Maximum current: 16A Ⅶ. Maximum power: 3680W Ⅷ. Accuracy: ± 2% Ⅸ. Measurement range: 1 ~ 3680W Ⅹ. Operating voltage: 175V AC - 276V AC Ⅺ. Voltage frequency: 45-65 Hz Ⅻ. Working current: ≤16A XIII. Reset button XIV. Grounding pin XV. Mains voltage display XVI. Current consumption display XVII. Displaying the current socket load (device power in watts) XVIII. Displays and records all electricity consumed XIX. Displays and records total on-time and energy bills (after setting the tariff) XX. Displays network frequency, power factor