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Home / Computer Hardware, Monitors & Peripherals / Soil Moisture Sensor Module for Automatic Watering Smart Car Kit

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Operating Voltage 3.3V - 5V DC
Output Signal Digital Switch Output (0 and 1) & Analog
Interface Type 3-Pin PH2.0 Connector
PCB Dimensions 32mm x 14mm
Probe Length 60mm
Material Nickel-plated Steel & FR-4 PCB
Compatibility Arduino, Raspberry Pi, ESP8266
Working Current < 20mA
Indicator Power LED & Digital Switch Output LED
Package Weight 15g

5 reviews

A

Anonymous

Apr 15, 2026

Rating: 5/5

Easy integration

Plug and play with Arduino Uno. The digital output is very stable and the analog reading gives good granularity for soil conditions.

A

Anonymous

Mar 23, 2026

Rating: 4/5

Solid sensor module

Does the job well for indoor plants. Make sure to seal the connections if you plan on using it outdoors to prevent short circuits.

A

Anonymous

Feb 20, 2026

Rating: 5/5

Reliable moisture readings

I used this for my automatic watering system. Very responsive to moisture changes and the digital output threshold is easy to adjust.

A

Anonymous

Feb 15, 2026

Rating: 5/5

Perfect for my garden project

Works exactly as described. Easy to calibrate with the potentiometer on the board. Integrated it into my Arduino watering system without issues.

A

Anonymous

Jan 31, 2026

Rating: 4/5

Good value for money

Great for school projects and prototypes. Just note that the probes can corrode after long-term use in wet soil, but for the price, it is acceptable.

5 FAQ

Q: Can I leave this in soil permanently?

A: It is designed for intermittent use. Long-term continuous exposure to moist soil may cause the metal probes to corrode over time.

Q: What voltage does it require?

A: It operates safely between 3.3V and 5V DC, making it compatible with most standard microcontrollers.

Q: Is this sensor analog or digital?

A: It provides both analog and digital outputs. You can read the moisture level via analog pin or use the digital pin for a threshold-based switch.

Q: How long are the probes?

A: The probe length is approximately 60mm, which is suitable for most standard plant pots and garden beds.

Q: Is there a specific library needed for this?

A: No specific library is required. It works with standard analog read functions available in the Arduino IDE or similar platforms.

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