Haenni Humidity Temperature Calculator

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Country of manufacture: Switzerland            Date of manufacture: ____
Diameter: 14.0 cm,          Thickness: 0.4 cm,           Weight: 49.7 gms
Materials: Painted aluminum disks and sectors
Scales: numerous, speciality
Front:
     Outer Disk: 0-25°C, -3.5-24.5 degree Wet/Dry Bulb difference curves
     Sector: 0-100°lC, 0.5-6% curves
     Cursor: 5-100% Relative Humidity scale
Back
     Outer Disk: 25-50°C, 12-50 degree Wet/Dry Bulb difference curves
     Cursor: 5-100% Relative Humidity scale
Gauge Marks: [       ]
Condition: C2 (Mint w/o all extras)
Came with: orig. black plastic slipcase; no manual

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