This version provides two ways of data synchronisation 2.4GHz WiFi and Ethernet cable. When used in an environment where WiFi is not available or unstable, the Ethernet cable helps a lot. This model is embedded with internal temperature and humidity sensors. Integrated with RS485 interface, external probes can also be conneced, such as TH30S-B, soil temperature and humidity probe,etc. Because of the cable port, this version is not waterproof.