The MS02 Sonkir pH soil meter tests soil moisture, pH value, and sunlight level of your plant, helping you specialize in grasping when you need to water your plant. Double-needle detection technology strongly enhances the speed and accuracy of detecting and analyzing soil moisture and pH acidity. This soil meter is designed to be lightweight and portable, easy to carry around for outdoor use, making it an ideal soil test tool kit for home plants, garden, lawn, and farm.