Soil NPK measuring instrument (soil sensor) high precision. Simple and convenient, low cost, fast measuring speed. This product is our company’s independent research and development for soil rapid detection sensor works. The shape of the soil meter is handheld, convenient for users to carry. The probe is designed with three pins. The material is stainless steel, with good corrosion resistance and toughness.
The working principle of the soil NPK detector is very simple. Long press the power button on the top to start the machine. Just insert the metal probe into the soil. The LCD will display the values from which you can quickly learn the NPK of the soil. Based on the readings and their relationship to the plants, you can decide if you need to apply fertilizer.