Walfront Soil Moisture Sensor Relay Control Module, Automatic Watering Switch, 12VDC, 1500W, Normally Open

• This module can control humidity of soil in a wide range and set control threshold by adjusting potentiometer. When humidity is lower than the set value, relay is energized; when humidity is higher than the set value, relay is dis-energized
• High quality soil moisture sensor has nickel plating surface, widened induction area, can improve conductive performance and prevent rust problem when contact with the soil to prolong service life
• It has time delay function, delay 3-5 seconds, when humidity is detected in the threshold state, the relay will not flicker
• Adjusting soil moisture control threshold by potentiometer (clockwise to increase, counterclockwise to reduce), it can control soil humidity and automatically watering vegetable garden, flower garden or pot
• Because this module has time delay function, when adjusting humidity, you need to wait for 5 to 8 seconds to check the change of relay, and the green LED lights will change, until it is adjusted as required

Specifications: Power Supply Voltage: 12VDC Input Voltage: >100mA Load Capacity: 250V 10A AC or 30V 10A DC Max. Load Power: 1500W Module Size: 1.7*5*2.5cm/0.67*1.97*0.98in Package Includes: 1 x Module 1 x Sensor 2 x Cables