Two-Point 33% and 75% RH Humidity Field Calibration Kit for Weather Station Hygrometers

Buy new: $8.95

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Review & Description

This kit features 33% and 75% RH Humidity packets that maintain 33% and 75% RH by releasing and absorbing water vapor as needed through the membrane and a reclosable 4" x 8" reclosable bag (for each) multiple uses.

Product Details

• Amazon Sales Rank: #9881 in Lawn & Patio
• Model: RHCOMBOCAL-KIT

Features

• Includes:
• - one 33% RH packet
• - one 75% RH packet
• - two 4"" x 8"" reclosable bag
• Specific RH achieved in 24 hours