Humidity Indicators
Small paper instruments designed to monitor humidity levels.
- Helps provide visual proof of the relative humidity within a sealed package or given environment.
- Color changes from blue to pink as humidity levels increase.
- The 3 dot cards are recommended to monitor electronic equipment or optical instruments and the 6 dot card is for all-purpose use.
Loading products...
Copyright © 2026 PreferPack. All rights reserved.
We use cookies to provide essential site functionality for the shopping cart, login, and security. We also use third-party cookies for analytics and advertising, which require your consent. You can accept all cookies, customize your preferences, or reject non-essential cookies. See our privacy policy for more details.