The HL20 and HL21 are accurate humidity temperature data loggers designed for recording ambient conditions in indoor areas such as research laboratories, high-tech manufacturing facilities and warehouses, storage areas and containers for sensitive goods, museums, office buildings, etc.
The HygroLog HL-20/21 has a large memory of up to 20,000 data points and a long battery life allowing you to record through your most demanding applications. In addition to recording humidity and temperature it has the option of recording dew/frost points. All recorded data is date and time stamped. The accuracy of the HygroLog HL-20/21 is unparalleled at 0.8%RH and 0.2°C. If it is essential that your recorded data be accurate and reliable then the HygroLog HL-20/21 is your match.
Long term recording of humidity and temperature measurements is essential in many production, storage, transportation, display and test applications as well as in buildings and museums. They provide valuable information on the levels and variation of humidity and temperature which can have a significant impact on people, materials and objects.
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