Phenolphthalein Ammonia Detection Test Paper, 100 Strips

This pack of 100 phenolphthalein test paper strips detects ammonia vapors by changing color to pink, ideal for ammonia leak detection. The strips are sensitive to ammonia in solution from 3-5 ppm, suitable for early leak identification. Useful for maintenance checks in refrigerators, air conditioners, HVAC systems, and industrial settings. Simply expose the strip to the suspected leak area and observe color change. Note: not intended for medical purposes; for monitoring and maintenance use only.