Brand new and high quality. This multifunctional energy meter DTSU666 is a smart meter with a variety of measurement and display options for 3-phase AC networks.This energy meter is the ideal instrument for measuring active and reactive energy in systems with consumers and energy producers such as photovoltaics or wind turbines. Direct operation by buttons on the front Directly readable meter readings (kWh) for import and export, kVArh, V, A, W, Var, VA, PF, Hz Smart Power Sensor DTSU666 supports communication via RS485, so it can also be read from elsewhere. For this purpose, it uses the Modbus-RTU communication protocol. Please allow 2-3 cm errors due to manual measurement. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. Thank you for your understanding. Just follow the Guest Checkout instructions. Also, the each additional item means exactly the the same color and size. Transit time may be a little delayed because of the bad weather.