1Pcs New Soil Hygrometer Detection Moisture Sensor Module for Arduino + Probe

1 .This is a simple moisture sensor can be used to detect soil moisture, when soil water shortage, module output a high level, whereas the output low level. Using the sensor produces an automatically watering device , let you don't manage the plants in the garden.
2 .The sensitivity can be adjust by blue potentiometer
3 .Working voltage : 3.3 V -- 5 V
4 . Double output mode, the digital output is simple and more accurate analog output.
5 .Set the fixed bolt hole, convenient installation
6 .Small board PCB size: 3.2 cm * 1.4 cm
7 .Power indicator light (red) and digital switch output indicator light (green)
8 . comparator adopted LM393 chips, work stability
 
Interface specification (4 wire):
 
VCC ¡ª¡ª external 3.3 V to 5 V
GND ¡ª¡ª external GND
DO ¡ª¡ª small plate digital output interface (0 and 1)
AO ¡ª¡ª small plate analog output interface
 
Packing List£º
 
1Pcs Soil Moisture Detector Module with Probe
 
Including Free dupont cables(20cm)