The PA39 GC0D500000 with Power meter manufactured by LUMEL is an electronic part with Reactive Power, Analogue, On Panel, Mounting, and 50HZ frequencies. This device is primarily used to measure and gauge power consumption from both the main source and its surrounding environment. It also has an external visual display that shows feedback for quick and easy readings. Additionally, it has a wide range of inputs and outputs for extra features such as signal tracing, alert systems, alarms, and various other controls. It is also designed to be easy to install and use without the need for expensive wiring or complicated setups.