Pack of 4 Soil Moisture Hygrometer Detection Humidity Sensor Module

Sepcifications

adjustable sensitivity ( shown in blue digital potentiometer adjustment )

 Operating Voltage 3.3V-5V

 Module Dual Output mode , a simple digital output , analog output more accurate.

 with fixed bolt hole for easy installation

 small printed circuit board  board size : 3cm * 1.6cm

 power indicator ( red ) and the digital switch output indicator ( green )

 using LM393 comparator chip , stable

VCC external 3.3V-5V

GND GND External

DO small board digital output interfaces ( 0 and 1 )

AO small board analog output interface

Pack of 4