2″ Metal Hygrometer

Description

2″ Metal Hygrometer

2″ Metal Hygrometer is great for any DIY project needing a high quality, highly accurate hygrometer! While made for Cigar humidors these hygrometers are great for mushroom storage and preservation. Allowing you to instantly check to see if your mushrooms are staying dry. This unit can also be used in a mushroom grow chamber to read out the humidity levels. The DIYers dream hygrometer is here!

Recommended Hole Saw: ( 1-3/4″ ) or ( 44-45MM )

Features: 

• High Accuracy:  +/- 1%  excellent measurement stability.
• Corrosion Resistance: Guarantees longer life.
• Nice 2″ Design for easier readability.
• Plastic/rubber retaining ring for use in thinner walled items, ie. canning jar lid.
• Comes factory calibrated within 1%.
• Flexible Adjustment: Adjustment hole on back, to re-calibrate as needed.

DESCRIPTION:

SOURCE: (WIKIPEDIA)

A hygrometer is an instrument which measures the humidity of air or some other gas: that is, how much water vapor it contains.^[1] Humidity measurement instruments usually rely on measurements of some other quantities such as temperature, pressure, mass and mechanical or electrical changes in a substance as moisture is absorbed. By calibration and calculation, these measured quantities can lead to a measurement of humidity. Modern electronic devices use the temperature of condensation (called the dew point), or they sense changes in electrical capacitance or resistance to measure humidity differences.