Indoor hygrometer can check comfort conditions in the house at a glance, with this compact combination thermometer and humidity gauge. Designed for indoor use the unit features an easy-to-read display with numerical readouts, as well as rate of change indicators and comfort index based on the humidity level. No programming required.
A indoor hygrometer shows the amount of relative humidity where the temperature hygrometer is located, and possibly at a remote location if the model includes a wireless sensor. Relative humidity is determined by the amount of moisture in the air versus how much the air is capable of holding at that specific temperature. Since hot air can contain more water vapor than cold air, the same amount of water vapor in the air would cause a higher relative humidity at a low temperature than it would at a high temperature. A relative humidity of 100% would mean the air is fully saturated.
Digital models of a thermometer hygrometer are often handheld units that run on batteries, and have a screen to display the measurements. The electronic thermometer has a sensor that changes resistance with changes in heat, and a circuit converts the resistance into a temperature. An electronic hygrometer uses a sensor that also changes electrical resistance, but the change is caused by the amount of moisture in the air. Both the recorded temperature and relative humidity are shown as numbers on the screen of the unit, and it usually has the capacity for a greater temperature range than the dial models. It might display both the indoor and outdoor measurements if it has a wireless remote sensor that is placed in the opposite location.
Indoor Hygrometer Features:
1. Indoor temperature (ºF or ºC)
2. Indoor humility
3. Temperature and humidity trends indication
4. Comfort level indication
5. Free Standing or wall hanging
Indoor temperature range :0~60ºC
Base station:2XAAA 1.5V Alkaline batteries
Battery life:Minimum 12 months for base station
Base station: 57X86X18mm
LCD Dimensions(LXW):34X39.5mm(2 Inch)
Package: 1*base station