for recording ambient temperature and relative air humidity.
Hygrothermograph with electronic clockwork, battery operated.
The case is made of white coated aluminium die casting and removable upper part with crystal-clear Macrolon panoramic hood.
Rotation of drum selectively adjustable: 1 day / 7 days / 31 days
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Measuring range:
incl. 1 set diagram charts (100 sheets) and 2 spare felt tips |
Hygrothermograph Ketterer with synthetic fibre measuring device Temperature range: 0- 40°C or other range (see above). With diagrams for 1 day / 7 days / 31 days - please specify! |
380,- € |
idem: with natural fibre measuring device, (0- 40°C) or other range (see above). With diagrams for 1 day / 7 days / 31 days - please specify! The natural fibres need to be re-generated in short intervals, in dry climates at least 1x per month (precision ±2,5% RH, if regularly calibrated and re-generated). For long-time applications within museums, synthetic fibre measuring devices are to be prefered. |
380,- € |
100 diagram charts |
19,50 € |
felt tip pen, per unit |
4,40 € |