The probe can be inserted directly into the soil. It features a digital display for soil moisture. When the humidity falls below the set value, the pump starts watering; when the humidity reaches the set value, watering stops. Operation is simple and designed for user convenience. Product Name: Soil Moisture Controller Module Model: XH-M214 Power Supply Voltage: DC 12 V Output Type: Output Switch Humidity Range: 20-99% RH Control Precision: 1% RH Control Current: 10 A Net Weight: Approximately 28 g Dimensions: 52 x 43 x 16 mm Usage Instructions: Please follow the wiring diagram provided in the description. Select the appropriate wiring mode based on your load voltage. 1. F0 Setting – Start Humidity (humidity level at which the solenoid valve or pump starts working): Press the SET button until F0 appears, then press SET again to view the start humidity value. Use the +/- button to set the desired humidity level. 2. F1 Setting – Stop Humidity (humidity level at which the solenoid valve or pump stops working): Press the +/- button to switch to F1, press the SET button to display the stop humidity value, and use the +/- button to set the desired value. 3. F2 – Humidity Correction: Normally, no correction is needed. Correction may be used when operating multiple modules simultaneously to ensure consistent performance. Note: The product color shown in images may appear slightly different on your monitor due to variations in screen calibration. Slight variations of 1-3 mm may occur due to manual measurement. Package Includes: 1 x Digital Humidity Controller