Ambient Weather WS-1401-IP Observer Solar Powered Wireless Internet Remote Monitoring Weather Station with Solar Radiation and UV, Compatible with Alexa The Ambient Weather WS-1400-IP OBSERVER weather station combines reliability, easy installation and wireless technology. It transmits 915MHz from the outdoor sensor array and indoor temperature sensor to the ObserverIP module, which plugs directly into your router. Wunderground.com is the most popular personal weather station (PWS) hosting service in the world. There is never a service fee. The wireless sensor array measures wind speed, wind direction, temperature, humidity, wind speed, wind direction, rainfall, UV and solar radiation. The ObserverIP module receives data from the sensor array and connects to your router. The ObserverIP is configured through any web browser.