The WS1 IoT environmental sensor lets you keep a close eye on the temperature and humidity in your house at all times. By efficiently monitoring these parameters, you can take timely action to prevent any issues such as extreme temperatures leading to mold growth or excessive humidity causing damage to your belongings. The WS1 provides real-time data and can alert you through various methods such as email, App, IFTTT, HTTP, Alexa, Line Notify, SMS, and voice call.