Mô-đun Cảm Biến Độ Ẩm Đất Tự Động DC 12V Kèm Dây 20cm

Using the company's high-quality soil sensors do detect soil moisture , the surface of nickel plated , has widened the induction area can improve conductivity, prevent contact with the soil rust problems and prolong life ; When two products can control a wide range of soil moisture , the corresponding threshold by adjusting potentiometer control , humidity is below the set value, start relay , while higher than the set value, the relay is disconnected ; Products with the delay function , delay of 3-5 seconds , when the humidity is detected in the critical state, the relay will not blink , flicker occurs ; High-quality products using Songle relay can withstand 1500W load , to meet the requirements of most people ; Products with power indicator and relay instructions ; Parameters: Supply voltage : 12VDC Input Current : more than 100ma Load: 250V 10A AC or 30V 10A DC ( below current in this range can be used) Module for use: sensor for detecting moisture in the soil ; module is the blue potentiometer to adjust the threshold for soil moisture , clockwise adjustment, control humidity will be bigger, smaller counter-clockwise ; due to the module with delay function in the regulation of humidity values ?? adjusted once every 5-8 seconds to wait around to see if changes in the relay , the green LED lights also have a corresponding change until transferred to meet the requirement. Material:CCL Colour:Blue Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Package: 1 x Soil moisture sensor control module 2 x 20cm DuPont line