ITEM NAME:New Exact Soil Hygrometer Detection Moisture Sensor Module for Arduino + Probe Description 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 —— external 3.3 V to 5 V GND —— external GND DO —— small plate digital output interface (0 and 1) AO —— small plate analog output interface Packing List： 1Pcs Soil Moisture Detector Module with Probe Including Free dupont cables(20cm).Using the sensor produces an automatically watering device, let you don't manage the plants in the garden. Power indicator light (red) and digital switch output indicator light (green). Interface specification (4 wire).
