Soil Hygrometer Detection Hygrometer Probe Soil Moisture Indicator Module / 4LED Display _x000D_ _x000D_ _x000D_ _x000D_ Voltage: 5V _x000D_ _x000D_ _x000D_ There are 4 LED indications depending on the humidity _x000D_ _x000D_ _x000D_ With analog output 0-5V humidity is greater, the output voltage is larger _x000D_ _x000D_ _x000D_ Level output upper and lower limit output _x000D_ _x000D_ _x000D_ Sensitivity can be adjusted by potentiometer _x000D_ _x000D_ _x000D_ The measured pins are lengthened and widened to measure soil moisture more accurately. _x000D_ _x000D_ _x000D_ Size: 30.5X100 (in millimeters) _x000D_ _x000D_ _x000D_ The output humidity is different. The number of LEDs displayed varies by color. _x000D_ _x000D_ _x000D_ All LEDs are not lit when there is no water, only the output LED is lit. Water shortage red yellow green blue, light up in sequence. Green indicates that there is basically no water shortage, and blue indicates saturation. _x000D_ _x000D_ _x000D_ The output status of the level port is introduced. When there is no water, it outputs 5V. Turn off the output when the soil moisture is gradually saturated and the blue light is on. There is a function of upper and lower limit in the middle, that is, only when the water is lower than the red light, the output will be turned on 5V, then the blue light will be reached, and the output will be turned off. _x000D_ _x000D_ _x000D_ The level port output can directly control small water pumps or lamp indicators, alarm lights, etc. Output voltage 5V current 1A. _x000D_ _x000D_ _x000D_ Because the level output port has the upper and lower limits of humidity, it can be directly connected to the pump and will not start and close frequently. It is only turned on when it is lower than the humidity value, and is turned off when it is higher than the humidity value. There is a certain upper and lower limit space in the middle. _x000D_ _x000D_ _x000D_ The sensitivity of the level port is also adjustable, and the sensitivity can be adjusted by the potentiometer. _x000D_ _x000D_ _x000D_ Analog output. According to different soil water output voltage values, the output value is 0 to 5V. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_