Description

When the humidity is lower than the set humidity, the start means that when the soil humidity is lower than the set humidity, the relay will automatically close, start the sprinkler, the water pump, etc. to do the humidification action, and automatically stop when the set humidity is reached.
use:
The soil humidity control threshold can be adjusted by the potentiometer, which can automatically control the vegetable garden, automatic watering of the garden, the control of the soil humidity in the family flowerpot, various electronic games, etc., with a high-power relay, which can control high-current equipment, which is less than the set humidity The automatic start relay pulls in, automatically disconnects when the humidity is greater than the set humidity, and has a delay function to solve the problem of non-stop flashing of the humidity critical state relay without delay. It is a simple and practical soil humidity control system.
product description:
1. The high-quality soil sensor produced by our company is used for soil moisture detection. The surface is nickel-plated, with a widened sensing area, which can improve conductivity, prevent contact with soil and prolong the service life;
2. The product can control the humidity of the soil in a wide range, and adjust the corresponding threshold through the potentiometer. When the humidity is lower than the set value, the relay is activated, and when the humidity is higher than the set value, the relay is disconnected;
3. The product has a time-delay function for 3-5 seconds. When the humidity is detected in a critical state, the relay will not flicker, and stroboscopic phenomenon will appear;
4. The product has power indication and relay pull-in indication;
Electrical parameters:
Power supply voltage: 12VDC  input current: more than 100ma
Load: 250V 10A AC or 30V 10A DC (currents below this range can be used)
Module instructions:
1. The sensor is suitable for soil moisture detection;
2. The blue potentiometer in the module is used to adjust the threshold of soil moisture. It is adjusted clockwise, the higher the humidity will be controlled, and the smaller it is counterclockwise;
3. Because this module has a delay function, when adjusting the humidity value, you need to wait about 5-8 seconds for each adjustment. See the change of the relay. The green LED light also changes accordingly until the adjustment meets the requirements.
4. Please refer to the picture below for the connection method of the product.
Shipping list:
1 set of soil moisture control module and soil sensor, 2 20cm long DuPont wires