Feature:1. STAINLESS STEEL PROBE: The soil sensor is designed with a probe made of stainless steel and has good corrosion resistance and toughness.2. REAL TIME VIEW: Mobile APP can view the historical record curve, and mobile app can view the real time moisture data.3. LOW POWER CONSUMPTION: The soil sensor is powered by two AA batteries (shipped without batteries), with low power consumption and long battery life.4. HIGH SENSITIVITY: The soil sensor uses a high sensitivity probe for quick response, stability and reliability, accurate measurement, fast insertion and easy measurement.5. APPLICABLE SCENARIO: The soil sensor is suitable for various horticultural sites to meet the soil moisture measurement of different plantations and provide all round care for flowers and plants.Specification:Item Type: Soil Moisture MeterMaterial: ABS, stainless steelProduct Size: Length: Approx. 180mm / 7.1inWidth: Approx. 46.5mm / 1.8inLength of Probe: Approx. 60mm / 2.4inPower Supply: 2 x AA batteries (batteries not included) Water Measurement Range: 0-100% Water Accuracy: 0-50% (3%), 50%-100% (5%) Temperature Measurement Range: -20-60 Temperature Accuracy: 1 Support Communication Protocol: For Zigbee 3.0APP Data Response Time: 60S Protection Grade: IP67Product 1. Install the sensor, please insert the probe vertically into the soil2. The probe should be in full contact with the soil and compacted to ensure the accuracy of the data.3. The soil sensor only tests soil and mud, not applicable to flour, prickly pear, organic debris, liquid glumes, etc.4. When installing the soil sensor, please try to put the probe into the soil as a whole.5. The depth and tightness of the probe between the soil will directly affect the value and cause errors. To improve the accuracy, please use the multi point test method to obtain the average value.6. When using, be careful not to touch the stone, and do not use too much force to push the probe, otherwise the probe will be easily damaged.7. After measurement, the probe must be cleaned with paper or cloth time8. When the sensor is not used and stored, do not rub or scrape the probe directly with your hands, keep the probe clean and dry, away from magnetic objects and other metal objects.9. Battery recycling please follow the waste battery recycling process to avoid pollution of the environment..Package List:1 x Soil Moisture Meter1 x InstructionNote:Test notes: 1. How much moisture is best: dry, sandy and fertile soil is not conducive to data accuracy: in dry or fertile soil, splash water around the sensor and wait half an hour for the measurement test, 40‑70% moisture is best.2. Different data for each test: The values of depth, density and moisture in each layer of soil are different and they will directly affect the accuracy of the data. It is necessary to take several measurements at different locations and take the average. When measuring, it needs to be at the same depth level and the soil around the probe must be evenly distributed, well compacted and in close contact with the probe surface. Clean the probe thoroughly with paper or emery cloth before each re‑measurement.