Humidity higher than the set humidity start means that when soil moisture is higher than the set humidity, the relay will automatically pull start dehumidifiers, ventilation and other equipment, automatically stops when the humidity reaches the set humidity.
Humidity is below the set humidity start referring to when soil moisture is below the set humidity, the relay will automatically pull, start spraying, water pumps, etc. do humidifying action to achieve the set humidity automatically stop.
Uses:
By adjusting potentiometer control soil moisture threshold, can automatically vegetable garden, garden automatic watering, soil moisture control household pots, a variety of electronic competitions, with 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 critical state relay humidity kept flashing question is a simple and practical soil moisture control system.
Products:
1 high quality of the company\'s soil sensors do detect soil moisture, the surface of nickel plated, have widened the induction area can improve conductivity, prevent contact with the soil easily rust problems and prolong life;
2. product can control a wide range of soil moisture, the corresponding threshold adjustment control by potentiometer, humidity is lower than the set value, start relay, while higher than the set value, the relay is disconnected;
3 products with the delay function, delay 3-5 seconds, and when it detects moisture in the critical state, the relay will not flicker, flicker occurs;
4 high-quality products using pine Le relay can withstand 1500W load, to meet the requirements of most people;
5 products with power indicator and relay pull indication;
Electrical parameters:
Supply voltage: 5VDC input current: more than 100ma
Load: 250V 10A AC or 30V 10A DC (lower than current within this range can be used)
Module for use:
1 sensors are suitable for soil moisture detection;
2 modules in the blue potentiometer is adjusted threshold for soil moisture, clockwise adjustment, control humidity, the smaller counter-clockwise;
3 Because this module with delay function in the regulation of humidity values, each tune a need to wait for about 5-8 seconds, and see changes in the relay, the green LED lights also have a corresponding change until transferred to meet the requirement.
4 Product wiring information, refer to the following picture.
Shipping list:
Soil moisture sensor control module and a set of soil, 20cm long DuPont line 2