Humidity control window (large) 20-80% rH (reversible)

Moisture Control Window (Herrmann Window, Large) 20-80% RH (Reversible)

The Moisture Control Window is specifically designed for use in flexible barrier films to monitor and display the relative humidity in barrier packaging. The humidity is indicated by the color change of the indicator points on the indicator card.

• Designed for flexible barrier films: Monitors and displays relative humidity levels.
• Color Change Indicator: Shows changes in humidity through reversible indicator cards (20 / 30 / 40 / 50 / 60 / 70 / 80 % RH).
• Easy Reading: Allows for humidity reading without opening the packaging.
• Simple Installation: Can be easily screwed into the packaging film, including installation key.
• High-Quality Materials: Meets TL 6685-0007 specification and comes with sealing rings.
• Versatile Use: Suitable for electronics, optical instruments, export packaging, bulk packaging, military and aerospace, as well as pharmaceuticals.

Package Contents:

• Installation key
• 10 indicator windows with sealing rings
• 10 indicator cards (20 / 30 / 40 / 50 / 60 / 70 / 80 % RH)

Herrmann Windows are indicators that show whether critical humidity levels have been reached or exceeded in packaging. These windows are specifically designed for use in flexible barrier pouches (PE or aluminum composite films) and allow for reading the humidity without opening the packaging. The color change of the indicator cards shows the relative humidity and is reversible, meaning that the color returns to the original state when the humidity decreases. They meet various military specifications and are easy to install.

Typical Application Areas:

• Electronics
• Optical Instruments
• Export Packaging
• Bulk Packaging
• Military and Aerospace
• Pharmaceuticals