Ensure your plant's happiness with this soil moisture meter. One of the most common mistakes made by new plant owners is overwatering or under-watering, which can cause stunted growth or even plant death. No more guessing at your soil moisture levels, simply stick the meter as deep as you can around your plant without hitting the bottom of the pot to see whether your plant is needing a drink or not! For indoor and outdoor use. Convenient to use, simple to operate and accurate results.