Description:
100% Brand New
a.This is a simple water sensor ,can be used to detect soil moisture .Module Output is high level when the soil moisture deficit,or output is low.Can be used in module plant waterer device, and the plants in your garden no need people to manage.
b.Adjustable sensitivity by adjusting the digital potentiometer (shown in blue)
c.Operating voltage:3.3V~5V
d.Dual output mode,analog output more accurate.
e.A fixed bolt hole for easy installation
f.Panel PCB Dimension: 30mm * 16mm
g.Soil Probe Dimension:60mm*30mm
h.With power indicator (red) and digital switching output indicator (green)
i.Having LM393 comparator chip, stable
Two small plates Interface Description (4-wire)
1 VCC external 5V
2 GND external GND
3 DO-board digital output interface (0 and 1)
4 AO-board analog output interface