Soil Tester,3 in 1 Moisture/Nutrient/Soil PH Tester Kit for Garden nutrients,Lawn,

It can measure soil moisture, soil fertility, soil pH. Humidity: switch the instrument button to Humidity, humidity is the humidity key, corresponding to the instrument is humidity, the left is dry, the right is wet. Values 1-3 (red part) indicate that it is dry and requires watering. Values 4-7 (green part) indicate that moisture is appropriate, adjust the watering time according to the plant species. Values 7-10 (blue part.) red part, indicating too wet. To use, insert the probe more than two-thirds of the way into the ground and take a reading in about 3 seconds. If you encounter resistance, try elsewhere again. Slide the switch and check the result "Soil humidity/fertility/pH" in the display window. Note: If the soil is too dry, you need to wet the soil with water to measure the value, otherwise it could cause the instrument needle to not function, the instrument detects moisture in the range of 1 to 10, if the humidity of the soil in the test environment is below 1 or above 10, it can lead to the instrument not working correctly. Soils can be naturally acidic or alkaline, and this can be measured by testing their pH value. Having the right pH is important for healthy plant growth. Being aware of the long-term effects of different soil management practices on soil pH is also important. Soil pH is considered a master variable in soils because it affects many chemical processes. It specifically affects plant nutrient availability by controlling the chemical forms of the different nutrients and inducing the chemical reactions they undergo. The optimal pH range for most plants is between 7 and 4. Fertility: Switch the instrument's button to the fertility setting: fertility pointing slightly to the left (yellow part), suitable for fertility pointing to the middle (green part), excess fertility pointer points to the right (red part)