MONITOR HUMIDITY: This is a rain, plant leaf humidity sensor that can be used for all kinds of weather monitoring.
LARGE AREA OF 5.0*4.0CM: High quality FR-04 material, large area of 5.0*4.0cm, plating surface has better oxidation resistance, electrical conductivity, and longer service life.
CAN BE DIRECTLY CONTROLLED: High power relay module can directly control load such as motor.
ADJUSTABLE SENSITIVITY: Sensitivity can be adjusted by potentiometer in order to control relay in different moisture level.
INDICATOR: Designed with indicators that will clearly show the power state and switch state.