HQRP Electricity Usage Monitor to Reduce Your Energy Costs plus UV Chain/UV Health Meter HQRP&reg; Electricity Usage Monitor plus HQRP&reg; UV Chain / UV Health Meter; AC Voltage: 160~280v/50hz or 90~150v/60hz; Power: 1~3000W; Electricity consumption: 0.0001 - 999.9 kWh; Electricity cost: 0 - 9,999$; Operation time: 0~60 minutes to 24 hours to 999 days (operation timein single operation period/accumulatedtime in alloperation periods); Digital LCD Display; Refresh rate: more than one time per second; 200 days warranty!