100% brand new and high quality Features: Made of high-quality flame-retardant ABS material, environmental protection, good performance, good insulation, durable, long-term use. Voltage, current, power, electric energy, temperature display, cumulative power, timing function. It can measure the power, current, voltage and temperature of the electrical appliances connected to it, and clearly see the electricity consumption. LCD screen displays the measurement data clearly and intuitively. Operating instructions: Click the MENU button on the panel to view the current power usage and accumulated power usage. Timing and power clearing method, press and hold the MENU button on the panel for 5 seconds, when the number in the timing area will flash, click the button to select and timing. The current power usage and accumulated power usage are cleared. When the number area is flashing, quickly double-click the button to reset. Press and hold the button for 5 seconds to enter the save setting. Specification: Product name: Electricity Meter Material: ABS Color: Black Optional Styles: 1, 2, 3 Size: app.85x44x22mm/3.35x1.73x0.87in Quantity: 1set Style 1 Parameter: Model: AC300-10A Voltage: AC50-300V Current: 0-10A Power: 0-3000W Capacity: 0.01-19999Kwh Timing: 0-200H Temperature: -10°C~99°C Style 2/3 Parameter: Model: AC300-100A Voltage: AC50-300V Current: 0-100A Power: 0-30KW Capacity: 0.01-19999Kwh Timing: 0-200H Temperature: -10°C to 99°C Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: Style 1: 1 x Electricity Meter + Manual Style 2/3: 1 x Electricity Meter + Manual + 1 x 100A Shunt/CT Coil(other accessories demo in the picture is not included.)