This nifty device is our secret weapon against wasteful power consumption, and helps us save money while on the road. With its clear LCD display, you can easily monitor power usage, voltage, amps, and more, giving you valuable insights into your RV’s energy consumption. Worried about overload? Fear not! The built-in battery ensures that you can move and view the meter without losing readings. Our main use case – while moochdocking at friends or relatives’ homes, we plug this in-line through the main outlet to keep track of our energy consumption, then we can reimburse them for the utilities cost if we choose!