1222-09 | Stone pine indoor climate hygrometer with thermometer | Fischer Barometer
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Hygrometer - Wikipedia
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Fischer: 1222-01, thermo-hygrometer for living climate, with indication of ideal climate values dependent on season and temperature, coloured areas for observing health room climate
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Hygrometer synthetic hair Ø 70mm, brand: TFA (Germany) | Hygrometers | Incubators & parts | OLBA EN