{"title":"Weather Meter Kit","handle":"weather-meter-kit","url":"/products/weather-meter-kit","description":"This Weather Meter Kit provides the three core sensors for a DIY weather station: an anemometer (wind speed), a wind vane (wind direction), and a rain gauge. All three sensors use passive magnetic reed switches rather than active electronics, making them simple to interface with any microcontroller.\n\nAll sensors terminate in RJ11 connectors for clean, standardised wiring.\n\nKey Features\n\n\nAnemometer – Closes a reed switch once per rotation; 1.492 mph (2.4 km/h) produces one closure per second\n\nWind Vane – Reports direction as a variable resistance via internal resistor network; magnet can close two switches simultaneously for up to 16 compass positions\n\nRain Gauge – Self-emptying tipping-bucket design; one reed switch closure per 0.011″ (0.28 mm) of collected rainfall\n\nPassive Sensors – No active electronics; uses sealed magnetic reed switches for long-term reliability\n\nRJ11 Connectors – All sensors terminate in standard RJ11 plugs\n\n\nIdeal For\n\nDIY weather stations with Arduino, Raspberry Pi, or ESP32\nAgricultural and environmental monitoring\nEducational meteorology projects\nRemote and off-grid weather logging\n\n\n\nNote: Some basic assembly is required. An external voltage source and microcontroller are needed to take measurements — these sensors output passive switch closures and resistance changes, not digital data.\n\n\nPackage Contents\n\n1× Anemometer (wind speed sensor)\n1× Wind vane (wind direction sensor)\n1× Rain gauge (tipping-bucket type)\n","vendor":"SparkFun","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":4460,"title":"Default Title","sku":"SF-SEN-15901","price":157.08,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":260,"option1":"Default Title"}]}