Key benefits and features Passive wind cup based sensor: The wind cup's special structure creates a directed rotation when horizontal wind is present, driving the builtin sensor to generate a voltage that is proportional to the rotation speed. This provides a direct, analog indication of wind activity. No external power required: The sensor is spontaneous and does not require any power source. When wind causes rotation, a voltage signal is produced automatically and displayed by the meter. Immediate, readable readout: The voltage change is connected to and displayed by a specially customized pointer instrument, offering a clear, realtime wind indication without complex electronics. Reliable and low maintenance: Because it operates without external power and has a simple mechanicaltoelectrical conversion, this sensor is well suited to field deployment with reduced maintenance needs. Function and performance emphasis: Output voltage is proportional to rotation speed, providing a straightforward representation of wind conditions when paired with the meter. Size, materials, and construction notes Dimensions and construction materials are specified per model and detailed in the product specification. Please refer to the modelspecific datasheet for exact size and material information. Practical applications Remote weather monitoring in locations without power supply: Use in outdoor weather stations or remote sites where power is unavailable, providing wind speed indication through the meter without battery or power infrastructure. Field wind surveys and site assessments: Ideal for quick field measurements at construction sites, wind farms, or environmental studies, where a passive sensor with an analog readout simplifies data collection. Laboratory and testing environments: Suitable for wind tunnel experiments or controlled testing setups requiring a passive, voltageoutput wind speed sensor that connects to a dedicated pointer instrument for immediate reading.