FREE: 2Pcs New Soil Hygrometer Detection Moisture Sensor Module for Arduino + Probe

The listing, 2Pcs New Soil Hygrometer Detection Moisture Sensor Module for Arduino + Probe has ended.

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 cm * 1.6 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

Only bid on it if you agree to pay shipping fee. For shipping you have to pay $5.99. Free tracking number as listed. I can offer you 2 methods of paying:
a. Pay via PayPal (Tax free)
b. Pay via Credit or Debit Cards via PayPal
After paid, please notify me from here (Listia message, very important) and copy unique Transaction ID# number from PayPal or write down your PayPal user name (last name, first name) here.
** If you don’t have PayPal account, please leave email address here, I will send you an invoice.
Shipping in 3-5 working days via Air Mail (economy shipping comes with free tracking number and can’t track online)
Delivers in 3-4 weeks.
All payments are protected by Listia and PayPal.
Thank you, Have a nice day!