module size :36*15*7
voltage :3.3-12VDC
current: working <20ma
output <30ma
connect port :+ - DO AO
DO :digital output
AO :analog output (voltage )
when soil humidity less than seting humidity ,DO output low level
+ :power +
- : power -
when connect power ,the power LED will ligthing ,the module start to work.
Package : 1PCS sensor probe + 1pcs module
