- High-quality relay rated to withstand up to 1500W, suitable for most common loads. - Time delay function: when humidity is detected in a critical state, there is a 3-5 second delay; the relay does not flash or strobe. - Wide-range soil moisture control: adjustable threshold value via potentiometer; if humidity is below the set value, the relay activates; if above, the relay switches off. - Durable sensor and contact design: high-quality soil moisture sensor with a nickel-plated surface; expanding the sensing area improves conductivity, prevents rust from ground contact, and extends service life. - Scenario: Home or balcony irrigation control using valves or pumps to maintain soil moisture at the desired level with delayed response to avoid false watering. - Scenario: Greenhouse moisture management with reliable operation in humid environments and adjustable thresholds for precise plant care. - Scenario: Outdoor planters and raised beds where a larger sensing area and corrosion-resistant construction provide long-term performance in varying weather conditions.