The WLan-WW is an intelligent LAN enabled device allowing you to monitor the status and performance of your Fox ESS PV system via the Fox ESS Cloud remote monitoring platform. The WLan-WW is ideal is situations where there is no reliable GPRS or 4G connection available.
Fox datalogger inverter compatibility - https://fox-ess.tech/datalogger-wifi-lan-4g-inverter-compatibility/