Sole Street Weather

The Sole Street Weather Station is a Davis Vantage Pro2 an dits instruments are located around our garden. They use a wireless radio link to contact the central console with the latest readings, on average every 2 to 3 seconds. If the link fails, the readings are retained until a successful transfer occurs.
	This instrument, known as the ISS (Integrated Sensor Suite) measures rainfall, air temperature and humidity. The black cylinder houses a funnel which channels rain onto a tipping bucket system. The buckets hold 0.2mm and the instrument's accuracy is +/-4%. The thermometer is housed within the white slatted feature. The slats allow air to pass through, aided by an aspirator fan powered by solar power. The thermometer measures temperatures to a resolution of 0.1°C with an accuracy of 0.5°C. This instrument also measures humidity in the range is 1 to 100% with a resolution of 1% and accuracy of +/-3%. The ISS collects data from the various instruments and transmits it every 2 to 3 seconds to the central console. The ISS uses a combination of solar and battery power to run.
Sitting at the top of a long pole are the anemometer and wind vane. The vane points towards where the wind is coming from and the cups are driven round by the wind to calculate the wind speed. These transmit their data to the console every 2 or 3 seconds and are solar/battery powered.
	An additional thermometer sits just above the grass and measures grass or ground temperatures which can be significantly different to those measured just 1.2m above by the ISS. The thermometer is connected to its station (disguised as a bird table) by a thin cable hidden in a piece of hosepipe to protect from squirrels. This instrument is battery powered. It is accurate to 0.56°C. Why, you may ask. Because the weather station is American and 0.56°C = 1°F which is the standard in the USA.