12V soil moisture sensor controller module Lower humidity start automatic watering

                          Humidity is below the set humidity start means that when soil moisture is below the set humidity , the relay will automatically pull, start spraying , water pumps , etc. do humidifying action reaches the set humidity is automatically stopped.            

                          Purpose:            

                          Adjustable via potentiometer control soil moisture threshold , which can automatically vegetable garden , garden automatic watering , household pots of soil moisture control , electronic game , etc., with a power relay , can control high current devices , less than the set humidity automatically start relay , more than the set humidity automatically disconnected , and a delay function to resolve without delay the humidity critical state relay flickered question is a simple and practical soil moisture control system.            

                          Product description:            

                          1 using the company\'s high-quality soil to make the soil moisture sensor detection surface is nickel plated, has widened sensing area can improve conductivity, prevent rust easily contact with soil problems and prolong life ;            

                          (2) products can be controlled over a wide range of soil moisture , adjustable via potentiometer control the corresponding threshold , the humidity is below the set value, the relay starts , higher than the set value, the relay is switched off ;            

                          3 product with a delay function , delay 3-5 seconds , when the humidity in the critical condition is detected , the relay does not flicker , flicker occurs ;            

                          4 high-quality products using Songle relay can withstand the load of 1500W , meet the requirements of most people ;            

                          5 products with a power indicator and relay instructions ;            

                          Electrical parameters:            

                          Supply voltage : 12VDC Input current : more than 100ma            

                          Load : 250V 10A AC or DC 30V 10A (below a current of this range can be used)            

                          Module for use:            

                          1 soil moisture sensor for detection ;            

                          2 module blue potentiometer is used to adjust the soil moisture threshold , clockwise adjustment, control humidity greater counterclockwise smaller ;            

                          3 with a delay due to the module functions in the regulation of humidity values , each tune a need to wait for 5-8 seconds or so to see changes in the relay , the green LED lights also have the corresponding changes until transferred to meet the requirement.