Air temperature Principle: NTC Range: –50…60°C Accuracy: ±0.2°C (–20°C…+50°C), the remaining ±0.5°C (>–30°C) Relative humidity Principle: Capacitor Range: 0…100% RH Accuracy: ±2%RH Total radiation Response time (95%): < 18s Annual instability: <1% Nonlinearity (0 to 1000W/m²): <1% Directional error (1000W/m² at 80°) <20W/m² Temperature-related sensitivity: < 5% (–10…+40°C) Tilt error (at 1000W/m²): <1% Spectral range: 300…2800nm Range: 1400W/m² Drooping angle: 0…60° Azimuth angle: -10°…+10° Air pressure Principle: MEMS capacitor Range: 300…1200hPa Accuracy: ±0.5 hPa (0…+40°C) wind direction Principle: Ultrasonic Range: 0…359.9° Accuracy: <3°, RMSE>1.0m/s Wind speed Principle: Ultrasonic Range: 0…90m/s Accuracy: ±0.2m/s or ±2%RMS, take the maximum value (0...65m/s), the remaining ±5% Technical parameters Specifications: Approximately Ø150mm, height 392mm Weight: about 1.5kg Heating: 20VA 24VDC Protection level: IP66 Digital communication interface: RS485, 2-wire, half-duplex Power consumption: 4...32VDC Working humidity: 0…100% Operating temperature: –50…60°C appendix Surge protection device Power supply 24V/4A UMB communication interface converter ISOCON-UMB Digital to analog signal converter DACON8-UMB Surface temperature sensor WT1 Pavement temperature sensor WST1 20m cable (10m is standard, please select this option if you need 20m) Rainfall barrel WTB100 Place of origin German Lufft | ![]() |