This sensor uses the two probes to pass current through the soil, and then it reads that resistance to get the moisture level. More water makes the soil conduct electricity more easily (less resistance), while dry soil conducts electricity poorly (more resistance).
This sensor will be helpful to remind you to water your indoor plants or to monitor the soil moisture in your garden. The IO Expansion Shield is the perfect shield to connect this senor to Arduino.
Note: If you are going to place the sensor to very humid soil, that would make it very easy to get the sensor surface erosion within several days, hence we suggest to use this one Analog Capacitive Soil Moisture Sensor- Corrosion Resistant instead.
- Power supply: 3.3v or 5v
- Output voltage signal: 0~4.2v
- Current: 35mA
- Pin definition:
- Analog output(Blue wire)
- GND(Black wire)
- Power(Red wire)
- Size: 60x20x5mm(2.36x0.79x0.2")
- Surface finish:Immersion Gold
- Moisture sensor x1
- Analog Sensor Cable x1
Shipping rates Australia wide
|Express Post*||Regular Post||Courier|
|Up to 500 gms||$13.09||$8||$20|
|Up to 3 kg||$16.39||$11.43||$25|
|Up to 5 kg||$32.89||$22||NA|
|Above 5 kg
||Estimated at checkout|
Shipping rates to New Zealand
|Australia Post international service|
|Up to 500 gms||$18.00|
|Up to 1 kg||$30.00|
|Above 1 kg
||Available on request|
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