We use a Met-Log Automatic Weather Station to collect the raw data used by our software. The Met-Log hardware comprises a set of analogue sensors and a dedicated device which converts the sensor outputs to digital form and makes them available on a serial line. It was purchased from R&D Instromet Ltd.
The serial lines from the Met-Log device and the Thies precipitation sensor are connected through serial-to-ethernet adapters to the local network. The devices are controlled and queried from a Linux server running our weather services. The recorded data is then made available to the Internet through our website.
This page contains pictures of the roof of our building and the equipment that is installed on top. The wind and sun sensors are visible on the tallest mast, while the rain sensor is fixed to the horizontal railings. The temperature sensor is located out of sight, below the overhang of the roof, and beneath the metal walkway. This position is out of direct sunlight. The humidity sensor is integral to the temperature sensor.
Rain Sensor (Thies Clima Laser Precipitation Monitor)
Sunlight Sensor and