This kit has become extremely popular as it automatically irrigates plants and flowers based on soil moisture monitoring very efficiently.

The soil moisture is detected and an adjustable quantity of water is delivered by activating the pump controlled by the relay, all powered by 4 AA batteries (not supplied).

The LM393 relay module controls the soil moisture.
When the humidity is lower than the set value, the relay is activated; when the humidity is higher than the set value, the relay is deactivated.

The high quality soil moisture sensor has a large enough nickel-plated induction surface to improve conductive performance and prevent rust problems.

By adjusting the control threshold of the soil humidity via potentiometer (clockwise to increase, anticlockwise to reduce), it is possible to control the soil humidity and automatically irrigate the vegetable garden, the garden or the pot.


Since this module has the time function, when adjusting the humidity, it is necessary to wait 5 to 8 seconds to check the change in value and the lights to Green LEDs will flash, until adjusted as required.


Kit contents
1 mini pump with 50cm hose
1 battery box for 4 x 1,5v stylus
USB power cable
Module for soil humidity detection lm393 and 5v relay + dupont cables.
No instructions are provided, assembly is simple but is intended for competent personnel