Soil Moisture Meter IP67 Waterproof Sensitive ABS Housing Stainless Steel Plant Water Monitor for Home Item Type: Soil Moisture Meter Material: ABS, stainless steel Product Size: Length: Approx. 180mm / 7.1in Width: Approx. 46.5mm / 1.8in Length of Probe: Approx. 60mm / 2.4in Power 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 3.0 APP Data Response Time: 60S Protection Grade: IP67 Product Description: 1. Install the sensor, please insert the probe vertically into the soil 2. 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 time 8. 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.