Hygrometers use different methods to measure humidity. Some use materials that change size or weight as they absorb moisture, ...

While some HVAC systems have built-in hygrometer displays, not all units will have one. If your unit does have a hygrometer component, it might also have built-in humidifier/dehumidifier features.

You can do that easily with the GoveeLife E-Ink Bluetooth Thermometer Hygrometer, and the good news here is that the same is now selling at Amazon for half the price. A single unit of the ...

plus tips on how to select the right unit for your needs. First, check your home’s humidity levels—ideally, it sits around 30 to 50 percent—with an inexpensive digital hygrometer.