The Renogy ONE Core All-in-one Off-Grid Energy Monitor is the perfect tool for solar power enthusiasts. This energy monitor is designed to help you keep track of the energy production and consumption in your off-grid system. The monitor is made by Renogy, a trusted brand in the alternative energy industry. With its LCD display and automatic voltage detection, this energy monitor is highly efficient and easy to use. It is compatible with AC current type and solar power source. The monitor comes in black color and is modeled after the Renogy ONE Core. This item is a great addition to any home improvement project and is perfect for those who want to keep an eye on their energy production and consumption.