
Humidity Reading Zero on Your Temperature-Humidity Chamber?
Try This Quick Sensor Fix
A frequent after-sales issue with temperature-humidity chambers is the controller displaying a humidity value of "0.0" while temperature reads normally. This usually points to a clogged or dried‑out gauze sleeve covering the humidity sensor. The gauze is critical – it wicks moisture onto the sensing element, and without proper capillary action, the sensor fails, triggering alarms and halting test cycles.
standard solution & reliable temporary workaround
The standard solution is to replace the gauze with an original spare part.
However, in urgent situations when no spare is available, our field engineers have validated a reliable temporary workaround: use a clean, unscented, lint‑free wet wipe. Carefully wrap it around the sensor tip, moisten it with distilled water, and reinstall. Within minutes, the humidity reading typically returns to realistic values, allowing the chamber to resume operation while you order a genuine replacement.
Important precautions
Choose wipes without lotions or fragrances, and change the makeshift wrap daily to prevent bacterial growth. This hack is not a permanent fix – original gauze ensures long‑term accuracy and stability.
For plant managers and lab technicians, this tip can save hours of downtime and avoid costly service calls. Always keep spare gauze in your inventory, but when you don't, a wet wipe can be a lifesaver.

ALP Technology: One-Stop Customized Test Chamber Solutions
Different from ordinary standard testing equipment, ALP Technology focuses on independent R&D, production and customization of environmental test chambers. With core advantages of high precision, strong stability, diverse simulation functions and flexible personalized customization, our products cover constant temperature and humidity test chambers, thermal shock test chambers, high-altitude low-pressure test chambers, aging test chambers and other full-series products. Targeting the differentiated testing demands of various industries, ALP Technology provides one-stop professional testing solutions for global enterprises and research institutions, helping customers improve product quality, shorten R&D cycles, and gain market competitive advantages.
Whether you are standardizing a new product line or solving a difficult failure issue, ALP TECHNOLOGY is ready to help.
✉️ E-mail: info@alp-environment.com
🔗 Website: www.alp-environment.com
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