text: The product works fine for moisture and PH, although measuring light at the base of a tall plant feels inaccurate since the meter is covered by foliage. The bigger issue was that the package had a hole in it when it arrived and when I opened the outer wrapping, the item was also completely unsealed and loose in the package. I was planning to give this as a gift to my plant-loving roommate but now that's not possible. It looks like this was tampered with during shipping.