20" x 20" Reusable Cobalt Chloride Moisture & Leak Detection Cloth
Special Features
- 20" x 20" cloth can be cut to size and reused, enabling maximum versatility
- Large cloth size enables you to detect leak patterns in large spaces
- Let the cloth dry and everything not touched by water will return to blue so you can reuse it ~ it's that easy!
- Color will change slowly when relatively humidity is over 55% and rapidly when the cloth is wet
- No color chart or other tools or equipment needed for accurate results
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