{"title":"Octopus Wind Speed Sensor Anemometer Three Aluminium Cups","handle":"octopus-wind-speed-sensor-anemometer-three-aluminium-cups","url":"/products/octopus-wind-speed-sensor-anemometer-three-aluminium-cups","description":"This three-cup anemometer measures wind speed by generating a DC voltage proportional to the rotation speed of its aluminium cups. The faster the wind blows, the higher the voltage output — up to 1.2V at maximum speed. Simply read the analogue output with a microcontroller to calculate wind speed.\n\nDesigned with a rain-proof housing and a standard Octopus brick connector, it integrates easily with ElecFreaks Octopus series boards and other microcontroller platforms. The three 6 cm half-sphere cups are mounted at 120° intervals on a ~20 cm diameter rotor.\n\nKey Features\n\n\nAnalogue Voltage Output – DC voltage proportional to wind speed (up to 1.2V)\n\nThree Aluminium Cups – 6 cm diameter, mounted at 120° intervals\n\nRain-Proof Design – Suitable for outdoor weather station use\n\nOctopus Brick Connector – Plug-and-play with Octopus series boards\n\n±10% Tolerance – Suitable for educational and hobbyist weather monitoring\n\n\nSpecifications\n\n\nCup Diameter: 6 cm\n\nRotor Diameter: ~20 cm\n\nOutput: DC voltage (0–1.2V analogue)\n\nTolerance: ±10%\n\n\nIdeal For\n\nDIY weather stations\nSTEM education and science projects\nEnvironmental monitoring with micro:bit or Arduino\nOutdoor sensor networks\n","vendor":"ElecFreaks","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":3983,"title":"Default Title","sku":"EF-EF04083","price":55.84,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":101,"option1":"Default Title"}]}