Passatore Digital hygro/thermometer black

Passatore Digital hygro/thermometer black

Product description:

The hygrometer from Passatore has a magnetic holder, so it will find its place in any humidor. The display can be shown in °C and °F.
The hygrometer can be calibrated by yourself.

How do I test if my hygrometer is calibrated?
Fill a bowl with salt and add water until the salt becomes a thick paste. The salt must not dissolve.
Place the hygrometer and dish in an airtight zipper bag.
After 6 hours, the hygrometer will show an accurate humidity of 75%.
If it shows more or less than 75%, it needs to be recalibrated.

How do I calibrate my hygrometer?
Press the Set button for 3 seconds to put the device into calibration mode.
If you calibrate the device for the 1st time, 0% will be displayed.
Press the “Min/Max/Clear” button to adjust the display according to the calibration.