temperature Principle: NTC negative temperature coefficient thermistor Measurement range: -50…60°C Accuracy: ±0.2°C (-20…50°C), other ±0.5°C (>-30°C) Relative humidity Principle: Capacitive Measurement range: 0…100 % RH Accuracy: ±2 % RH radiation Response time (95%): <1 s Tilt error (at 1000 W/m2): ±1 % Spectral range (output attenuation less than 50%): 300 ... 1100 nm Measurement range: 0...1400 W/m2 Air pressure Principle: MEMS capacitive Measurement range: 300…1200 hPa Accuracy: ±0.5 hPa (0 … +40°C) wind direction Principle: Ultrasonic Measurement range: 0–359.9° Accuracy: Root Mean Square Error < 3° (>1.0 m/s) windspeed Principle: Ultrasonic Measurement range: 0…75 m/s Accuracy: ±0.3 m/s, or 3% of the maximum value (0~35 m/s), 5% (>35m/s) Technical parameters Protection level: IP66 Specifications: 150 mm in diameter, 317 mm in height Weight: 1.5Kg Interface: RS485, dual-wire connection method, half-duplex Power supply: 24VDC, ±10% (When there is no heating) Operating temperature: -50…60°C Working humidity: 0…100% RH Heating power: 20VA @ 24VDC matchParts Surge protector Power supply 24V/4A UMB Interface Converter ISOCON Digital-to-analog converter DACON8-UMB Temperature sensor WT1 Pavement temperature sensor WST1 Rain sensor WTB100 Connection cable 20m Place of origin German Lufft |  |