When you’re looking for one of the most cost-effective pH meters for your soil, this is it. Atree Soil pH meter also measures light and moisture in addition to pH. It also comes in four color options, a feature you don’t often find in a pH meter, so you can choose from black, green, yellow, and purple, depending on which you like best.
It doesn’t use batteries and measures 10.2 inches by 2.4 inches, making it relatively easy to transport. Simply insert the probes (up to 6 inches) in the soil and wait approximately 10 minutes for the needles to stop moving. Once they’ve stopped, you’ll have your measurements. However, if you’re planning on gardening indoors, this meter may not be the best choice for you, as it’s unable to detect the light intensity of grow lights.