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Common Home Weather Station Sensors
Most home weather stations come with a pretty standard set of sensors for measuring different things. They can vary from brand to brand and model to model, but the basic weather station sensors include a thermometer, hygrometer, barometer, anemometer/wind vane, and rain collector. In fact, these are the 5 sensors included when you hear about a 5-in-1 integrated sensor suite. We’ll look at what each one does individually.
A Hygrometer is an instrument designed to measure the air’s water vapor content or relative humidity. This is the ratio of the amount of water vapor in the air compared to the amount that is required for saturation (at the given temperature and pressure).
Barometers measure atmospheric pressure. Atmospheric pressure changes assist in forecasting short term changes in the weather. The movement of high and low pressure systems create the changes in the day to day weather that we observe.
Wind vanes measure wind direction and an anemometer wind speed. Weather stations most often use a cup anemometer.
A rain collector is used to measure rainfall. Weather station rain collectors are most often self-emptying so that there is no dumping required by the user. The image shown here is of a rain collector from the Davis Vantage Pro2. The source of this image, and more info on weather station sensors can be found here on Wikiveristy.
Other Weather Stations Sensors
The instruments above are the most commonly used in weather stations, but are definitely not the only ones used. Other weather station sensors include UV & solar radiation sensors, leaf & soil moisture/temperature sensors, lightning detection. There are others too, but they’re much less common in the top home weather stations.