1. Voltage: AC50-300V 2. Current: 0-100A 3. Power: 0-30KW 4. Capacity: 0.01-19999Kwh 5. Timing: 0-200H Colour:Black Material:plastic Model:AC300-100A Temperature: -10 C to 99 C Product Function: 1.Volage curent, power, iming. humilyCurrent electical energy,cumulative electrical energy 2. Electic energy and can be reset 3. Electic energy and iming have power down memory uncion 4. Rated frequency 45-65Hz Operating Instructions: Click the MENU button on the panel to view the current electrical energyand cumulative electrical energy. Electric energy and timing reset method: and hold the MENU button for 5 seconds, the number in the timingarea flash, then click the button to select timing, current electricalenergy and cumulative electrical energy reset. When the number flashes,double-click the button to reset. and hold the button for 5 secondsto save the settings. note:Printing words are random, no specified words are accepted Package Contents: 1 x Meter 1 x Closed-end transformer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.