Easy to use and simulate time, it can measure various parameters and cumulative kwh. It is very suitable for energy consumption monitor. It has 4 independent keys for you to quickly access different power parameters! Built in high-precision current sensor, which can usually display real-time voltage, current, power supply, timing and billing. The voltage and power test is within 2%. Installing the batteries Install 3.6V rechargeable Battcrics(NI-MH) . The purpose of the batteries is to store the total electricity and mcinory setting. Resetting If an abnormal display appears or the buttons produce no response, the instrument must be reset. To do this,press the RESET button. Display Mode Entire LCD can be displayed for about 1 minute and then it automatically gets into Model. To transfer from one mode to the other, press the FUNCTION button. Mode 1: Time/Watt/Cost Display Display duration(how long) this device connect to power source.LCD on first line s…