What Is a Weather Station and What Is Inside One

The console is not the instrument

People call the display "the weather station", but the display measures almost nothing except indoor temperature, humidity and barometric pressure. Everything outdoor comes from a separate unit over a radio link. That split matters when you are buying: a console with a beautiful screen and a poor outdoor array is a poor weather station, and the specification sheet usually makes the split hard to see.

The outdoor array

On a full weather station the outdoor unit is an integrated array, often sold as 7-in-1: a wind vane for direction, a cup anemometer for speed and gust, a tipping-bucket rain collector, a temperature and humidity element inside a radiation shield, a UV and light sensor on top, and a small solar panel that supplements the batteries. It mounts on a pole and needs a clear run of air; put it under an eave and the wind and rain figures become decorative.

Remote thermo-hygrometer sensors

Separate from the outdoor array are the small remote sensors that report temperature and humidity from a particular place — a nursery, a greenhouse, a cellar, a fridge. Most of our consoles receive up to eight of these, each set to its own channel with dip switches. This is the part buyers under-order, because a site usually has more places worth measuring than it first admits.

The radio link

The link is the thing that decides whether the product works at the customer’s address. Domestic weather stations generally use 433 MHz with an open-area range around 100 m, which drops substantially through walls and metal cladding. Where the sensor sits further out than that, a LoRa link covers the distance. Wi-Fi is a separate question: it connects the console to the internet, not the sensor to the console.

What a console adds on top

Beyond the raw readings, consoles derive dew point, heat index, wind chill and a feels-like temperature, hold max and min records, and drive a local forecast icon from the barometric trend. That forecast is calculated on the spot from your own pressure, which is why it sometimes disagrees with the national forecast and sometimes beats it.