Holykell Garden Signal Output Aluminum Alloy Direction Sensor Wind Vane Speed. Wide Measurement Range: Measures wind speed from 0 to 60m/s with 0.1m/s resolution. Durable Aluminum Construction: Full aluminum shell offers high strength, hardness, and corrosion resistance. Advanced Waterproof Design: Bottom outlet method prevents aging and ensures long-term waterproof performance. Low Rotation Resistance: Uses high-performance imported bearings for accurate measurement. Flexible Output Options: Supports Pulse, 0-5VDC, 4-20mA, RS485, 0-10V, and 0-5V signals. Anti-Interference Capability: Features anti-electromagnetic interference treatment for stable operation. Versatile Wiring Support: Compatible with both four-wire and three-wire connection methods.