Thermohygrographs Analog Thermo-Hygrometers
The thermohygrograph is a precision meteorological instrument that measures temperature and humidity and leaves it on a graph paper.
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Lambrecht
Natural hair precision thermohigrograph of Lambrecht brand
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More info of Thermohygrographs Analog Thermo-Hygrometers
A thermohygrograph is a precision instrument, approved by the World Meteorological Organization and which records the temperature and humidity values in a graphical format on a paper daily.
The thermometer works through a spiral system by dilation and contraction of the same, while the hygrometer is also based on the contraction and dilation of a hair of natural origin.
The equipment is completed with a drum where the graph paper and a needle with a marker pen that transmits the movement to the paper and writes on it.
There are several models, depending on the range of temperature and humidity that can register.