Feature 1 Remote Monitoring: Access the inverter for remote monitoring, and remotely control and monitor through APP. 2 RS232 Port: With RS232 communication interface, can ensure fast connection and stable performance. 3 Applicable Type: Mainly used for solar photovoltaic power generation grid connected inverter, suitable for POW series models. 4 ABS Material: The shell is made of excellent ABS material, which is hard and impact resistant. 5 Simple Connection: With connecting wires and screws, easy to install and use, 4 lights are always on, it means the connection is normal.Item Type: Solar Inverters Wifi ModuleMaterial: ABSUses: Mainly used for solar photovoltaic power generation grid connected inverterCommunication Interface: RS232Applicable Model: For POW series Package List1 x Plug1 x Transmitter1 x Connection Wire2 x Screws1 x User Manual