Smart comprehensive powerful and inexpensive the Ambient Weather WS-100 Smart Home Weather Station Wi-Fi Module allows you to build your own remote monitoring system. The module itself measures indoor temperature humidity and barometric pressure; and it can receive additional wireless signals from up to 10 different sources. The WiFi display module receives RF sensor data from 10 different sensors (915 MHz) and publishes the data to AmbientWeather.net using WiFi (2.4 GHz). The included Ambient Weather F007PF pool & spa sensor wis a waterproof floating sensor that will transmit water temperature. It features an eight channel selectable switch allowing you to monitor water temperature from eight different locations. The screw-on lid with locking key design with double internal gaskets provide a leak free water resistant design. Solar powered with battery back up extends the life of the battery. Experience the convenience of having your personal weather information with you on the go from your computer tablet or mobile device. Features real time dashboard with expandable tiles historical graphs and data email and text alerts IFTTT Amazon Alexa Google Home API for programmers public share feature and more. The share feature allows you to share your dashboard with friends and family. The embedded share feature generates custom html code you can add to your website. The public website features maps with radar temperature and wind overlays. NOTE: Includes WiFi module & (1) F007PF pool/spa sensor only. Additional sensors sold separately. Specifications: Indoor Temperature Range: 32 to 140 °F Indoor Humidity Range: 10 to 99% Barometric Pressure Range: 8.85 to 32.50 inHg Water Temperature Range: -40 to 140 °F