4-in-1 Soil Tester for plants and lawns. 1 Soil Tester. PH value (12 levels): 3.5~9.0pH. Let you know when to water. You will never over/under water your plants again with this tester. Sunlight (9 levels): LOW-, LOW, LOW+, NOR-, NOR, NOR+, HGH-, HGH, HGH.
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