Feature:               1. The professional soil meter is used to test the NPK of the soil to help achieve the optimal level of crop growth.         2. High sensitivity probe, accurate measurement, stainless steel probe, the error range is reduced to 2%.         3. The product is small and beautiful, easy to carry, convenient for indoor and outdoor use, suitable for farms, gardens and lawns.         4. Portable measurement, accurately grasp the soil fertility status, in order to improve plant yield.         5. LCD display, direct display of measurement data, without long waiting. It can also display the battery level.                        Specification:         Item Type: Soil Sensor  Material: ABS+Stainless Steel  Color: As shown in the picture  Size: Approx.170x37mm/6.71x1.46in  Probe Length: Approx.65mm/2.56in  Weight: Approx.820g/28.9oz  Battery: DC 3.7V lithium battery 4000MAH (Built-in)  Measuring Range: 1-1999mg/kg (mg/L)  Resolution: 1mg/kg (mg/L)  Measurement Accuracy: ±2%F.S.  Response Time: