ThermoPro Wireless Thermometer Hygrometer Bluetooth Digital Indoor Room Thermometer Temperature and Humidity Gauge 260ft Remote Monitor with Smart App Alerts Comfort Indicator

I like having two in various locations of my home with a basement where I can check the humidity and temperature in a very humid storage area and the main room or spare bedroom. I can move them around and rename them and watch how the micro climate differs and changes on my Android tablet. I now have two Midea humidifiers that report their humidity levels and allow me to change their settings over wifi. The ThermoPro devices helped me to determine my humidifier requirements. Hollow body guitars require humidity levels between 40 and 60%. I'm aiming for 50%.