Soil Moisture Detection Control Module w/ Soil Humidity Sensor - Blue

This is a simple soil sensor can be used to detect soil moisture when the soil moisture deficit module plant watered device, so that the plants in your garden without people to manage
- Adjustable sensitivity adjusts the digital potentiometer (shown in blue)
- Features time delaying function, about 3~5 seconds, when it detects humidity in the critical state, relay will not flash, turns to quick flash
- With time displaying function, after adjusts humidity value, need to wait for 5~8s, the green LED indicator will change, until adjust the humidity value to the your need