- High quality relays that withstand up to 1500 W, suitable for most common loads. - Wide range soil moisture control with adjustable threshold via a potentiometer. When soil moisture is below the set value, the relay is energized; when it rises above, the relay is de-energized. - Time delay function with 3-5 seconds delay in critical moisture states; the relay does not blink and avoids stroboscopic effects. - Nickel-plated soil moisture sensor surface enhances sensing range and conductivity, reduces rust from soil contact, and extends service life. - Use scenarios - Automatic irrigation for potted plants, garden beds, or lawns to keep soil within target moisture. - Greenhouse or nursery irrigation control to maintain consistent moisture levels for healthy growth. - Seed trays, starter beds, or hydroponic setups requiring stable soil moisture.