describe ? Is it scientifically accurate? Soil Tester, Soil Moisture and pH Measurement is very sensitive and can measure soil moisture on a scale of 1 to 10 and read pH on a scale of 3 to 8. You can adjust the environment in which plants grow over time. ?Wide range of applications? Know when to change or adjust water quality, pH levels, garden lighting, indoor and outdoor flowers and plants. It's a great tool for managing flowers, plants, vegetables, shrubs, and more. ? Easy to use? The soil moisture meter does not need batteries, more environmentally friendly, just insert the probe (at least 10cm deep, ? Heavy use? The soil tester adopts multi-color coding symbols, the values are easy to read, and the plant growth tracking can help plants grow healthily and vigorously. It is widely used in plant cultivation, flower planting and vegetable planting. Size: 62*260mm