Combined indicating instrument to measure the ambient temperature and rel. humidity and to determine the dew point temperature, saturation pressure, vapour pressure or saturation deficit. The values can be read directly at the scale.
The temperature is measured with a mercury thermometer.

Combined indicating instrument designed to measure the ambient temperature and rel. humidity.

Combined indicating instrument designed to measure the ambient temperature and rel. humidity, as well as the representation of the normal climate acc. to DIN 50014, and of a comfort range.

A thermometer and a hygrometer are fixed on a joint base plate. Instrument for wall mounting.