Review on 🌡️ Ubibot WS1 WiFi Temperature Humidity Sensor and Smart Monitor with External Probe Support, Alerts & History, Free IoT App/Web Console, IFTTT, Alexa, (2.4GHz WiFi – No Hub Required) by Richard Miller

I assembled this little device in less than 5 minutes and it works perfectly. Compared to other monitors I've had in the past, this is a huge step up in terms of functionality. This product is probably the only one on the market that provides an API to access data. If you are a computer scientist like me, you will definitely love this product. Another good thing about this device is that you can use the batteries as a backup power source if you connect a USB power adapter. The mobile app works great, showing graphs of temperature, humidity, light, Wi-Fi signal, and vibration. Setting up notifications is very easy. Highly recommended!