DescriptionBy using a potentiometer to adjust the soil moisture threshold control, this system enables automatic watering in gardens and manages soil humidity for family flowerpots. It supports various electronic applications and features a high-power relay that can control devices requiring a large current. When the soil moisture level falls below the set threshold, the relay automatically activates. Conversely, if it exceeds the threshold, the relay disconnects automatically after a delay. This system also addresses the issue of a relay flickering in a critical humidity state, resulting in a simple and practical solution for soil humidity control.Using the company’s production of high-quality soil sensors for the detection of soil moisture, and the surface of the nickel plating, widening of the sensing area can improve conductive properties, prevent soil contact is easily rusting, and prolong service life.The product can be a wide range of control soil humidity and control the corresponding threshold value by adjusting the potentiometer. When the humidity is lower than the set value, start relay, is higher than the set value, the relay is switched off.The product has the function of time delay, a delay of 3-5 seconds when the detected humidity is in the critical state, the relay will not blink, stroboscopic phenomenon.Products using high-quality relays can withstand a load of 1500W, meeting the requirements of most people.Products with a power indicator and indicator relay. Module InstructionSensors applied to the detection of the soil moisture moduleThe blue potentiometer is used to soil moisture threshold, clockwise adjustment and control the humidity will be bigger, counterclockwise smaller.Due to the module with a delay function, adjust the humidity value. Once every tune needs to wait about 5-8 seconds, see the change of the relay, the green LED lamp also has the corresponding change, until adjusted to meet the requirements.SPECIFICATION(a) RelaySupply voltage: 12VDC input current: more than 10A.Load: 10A 250V AC or 10A 30V DC (lower than the current in this range can be used)(b) Soil Moisture SensorOperating voltage: 3.3V~5VDual output mode, analog output more accurateA fixed bolt hole for easy installationWith power indicator (red) and digital switching output indicator (green)Having an LM393 comparator chip, stablePanel PCB Dimension: Approx.3cm x 1.5cmSoil Probe Dimension: Approx. 6cm x 3cmCable Length: Approx.21cmVCC: 3.3V-5VGND: GNDDO: digital output interface(0 and 1)AO: analog output interfaceSHIPPING LIST1 x DC 12V Relay1 x Soil Moisture Resistive Sensor
