Sacolar WI-FI connector is a plug-and-play monitoring device to help monitor the status of the PV system. This device is installed on a Sacolar inverter or controller, uploading and receiving datas from the PVguarder server. With the CubeWiFi / CubeGPRS, users can monitor the PV system from the mobile phone or from the website anytime anywhere. Features: Easy to use Plug-and-play commissioning 100-meter wireless connection for CubeWifi / 2G, 3G network for CubeGPRS Remote firmware updating for inverte Free online monitoring via web server or monitoring by cellphone