- Sensor and construction: Uses a high-quality soil moisture sensor with a nickel-plated surface. Expanding the sensor area improves conductivity, prevents rust from ground contact, and extends service life. - Moisture regulation and control: Regulates soil moisture over a wide range with the threshold value adjustable via a potentiometer. When moisture is below the set value, the relay activates; when moisture is above the set value, the relay turns off. - Time delay feature: Includes a time delay function of 3-5 seconds when humidity is detected in a critical state. During the delay the relay remains stable and does not flash or strobe. - Relay performance: Equipped with a high-quality relay capable of withstanding a load of up to 1500W, suitable for most common applications. - Practical durability: The nickel-plated surface helps resist corrosion from ground contact, contributing to longer service life and reliable operation. - Use scenarios: - Home garden irrigation: automatically water plants to maintain optimal soil moisture and reduce overwatering. - Greenhouse or nursery care: precise moisture control for delicate crops, minimizing water waste and stress on plants. - Lawn or field irrigation automation: maintain consistent soil moisture across larger areas with reliable on/off control.