The combined (Rotronic) high accuracy temperature and relative humidity sensor has been specially developed for measuring ambient conditions where high accuracy demands are placed on temperature and humidity measurement. The probe operates in conditions between -40°C and 60°C and is suitable for applications in HVAC, the food and pharmaceutical industries and climate cabinets. The cable sensor can be easily connected to the Nano SPY U or LoRa® SPY U. Optionally available with a COFRAC (primary ISO 17025 certificate) or traceable calibration.