There is a difference in humidity sensors! Don't make the mistake of assuming that all relative humidity sensors perform the same. Developed by ROTRONIC, the Hygromer sensor is the result of many years of experience in humidity measurement and is uniquely different. The Hygromer is a thin film capacitive sensor with unparalleled accuracy, repeatability and durability even under extreme climatic conditions and severe pollution. Special formulation of the dielectric polymer that is at the core of the sensor, careful selection of all other materials used in the sensor, and tight manufacturing standards contribute all to make the Hygromer sensor superior:

• Average life time well in excess of 10 years. Each sensor is covered by a 3-year warranty.
• Very stable: operates practically maintenance free, with long intervals of time in between calibrations.
• Accurate to ±1%RH or better from 0 to 100%RH (at 18 to 28°C / 64 to 82°F).
• Recovers faster and exhibits less calibration shift than other sensors after exposure to high humidity over long periods of time.
• Survives long term exposure to temperatures of up to 200°C / 392°F. There is no known limit for temperatures below freezing.