Living room climate hygrometer thermometer with synthetic fibers in the chrome steel case with wooden base in beech, nature

Hygrometers serve the measurement of the relative humidity .They are working on the hygroskopic properties of natural hair or synthetic fibers which change their length with the amendment of the relativ humidity.

While natural hair is also useable at temperatures below 0 °C, hygrometers with synthetic fibers response in this temperature range very slowly  and, therefore, are not recommended for the outside use. Hair hygrometers need the regular regeneration (once a month). 

Hair hygrometers need the regular regeneration (temporal distance: some weeks), with hygrometers with synthetic fibers this is not necessary in general.

The Living-room climate hygrometer - thermometer

• If signals in the " green sphere{area} " any time healthy residential climate, with red: Short and strong window winds help{assist} STOP here!
• Saves technical explanations which can be hard provided, because the dial gives easy to remember tips to the contact with the aerial humidity!
• Allowed maintenance-free company: no regenerating thanks to high-quality synthetic fibers!
• Ordered above a beautifully designed, wooden stand base for the free installation for exact, quickly reactive measurement!
• Constantly functions without battery, is ecologically friendly therefore in the company!
• If clear user's info with worth knowing background info includes!
• The bimetal thermometer signals optimum living room temperatures in proportion to optimum moist relations. With thus possibilities for the energy conservation arise without big capital investment costs.

• Useable to 0 °C
• Energy savings feature by graf. Representations on the scale
• Measurement accuracy 3 % r.H.
• not useable in Amoniak surroundings
• poor in servicing
• low Hysterese
• high reaction velocity
• good use
• high dependability
• an easy service
• Bimetal thermometer graduation 2 K