UNI-T UT230B E2192US Series LCD Plug-in Energy Consumption Meter Voltage Current Cost Frequency Power Factor Monitor CO2 Emission Detection Color: Off White Material: ABS Display: 46*30mm LCD Power Factor: 0-1.00 Energy: 0-9999kWh Cost: 0-$9999 Total Time: 0 minute-9999 days Frequency Measurement: 45Hz-65Hz Operating Environment: 0~45C, <95%RH Storage Environment: -10~60C, <95%RH Operating Height: Max. 2000m(above sea level) Power Supply: 1 * 3V CR2032 Button Cell(Included) Item Size: 130 * 65 * 37mm / 5.12 * 2.56 * 1.45in Item Weight: 156~170g / 5.5~6oz Package Size: 21.5 * 11.7 * 8cm / 8.46 * 4.6 * 3.15in Package Weight: 208~223g / 7.34~7.86oz