Use With Winegard RV Halo * Mobile Application To Monitor Conditions In The RV; Local Wireless Network (WiFi) Or Cellular Technology; App Available With Android Or iOS (iPhone/ iPad); Anywhere Winegard Gateway Router Has Internet Connection Or Cellular Data; Cellular Data Plan May Be Needed; Without Cellular Hotspot; With 1 Water Sensor/ 1 Temperature And Humidity Sensor/ 2 Contact Sensors/ 1 PIR Motion Sensor/ 1 USB Dongle To Plug Into Gateway Router For Remote Access; Compatible With GW-1000 Gateway 4G Router/ GW-5G01 Gateway 5G Router/ WF2-435 ConnecT 2.0 4G Router/ WF2-95B ConnecT 2.0 4G+ Router