Test your soil pH, moisture, and light level with this handy two-prong meter. Understanding your soil pH will help you better support your plants. Our edible plants need a slightly acidic soil (5.5-6.5 is ideal) to help them take in nutrients. Reading your moisture level will let you know if its time to water, and understanding the light levels in your soil will advise you on how compact your soil may be. All super important things to know about any soil medium you're using to grow food at home!