Schneider Electric GWPIU3020R Weatherproof Residual Current Device is an electrical safety device designed to quickly disconnect power in the event of an electrical fault. It is designed to protect against the risk of electric shock and fire caused by faulty wiring or appliances. 2 Gang has two individual outlets, which plug in and protect two separate electrical devices. It is designed to be resistant to outdoor conditions, such as rain and dust. Grey is the color of the device 

In summary, Schneider Electric GWPIU3020R Weatherproof Residual Current Device is an outdoor electrical safety device with two outlets that provide protection against electric shocks and faults in wet or outdoor conditions.