Soil Moisture Sensor Products

The SparkFun Soil Moisture Sensor is a simple breakout for measuring the moisture in soil and similar materials.

• The more water that is in the soil means the better the conductivity between the pads will be and will result in a lower resistance, and a higher SIG out.
• PCB coated in Gold Finishing (ENIG or Electroless Nickel Immersion Gold) was added to combat corrosion
• Supply power to VCC and GND with a voltage between 3.3V to 5V.
• The value read on SIG will vary depending on the voltage with which you power the sensor
• Recommend not powering the sensor constantly to prevent corrosion of the probes.

The SparkFun Soil Moisture Sensor is a simple breakout for measuring the moisture in soil and similar materials.

• The more water that is in the soil means the better the conductivity between the pads will be and will result in a lower resistance, and a higher SIG out.
• PCB coated in Gold Finishing (ENIG or Electroless Nickel Immersion Gold) was added to combat corrosion
• Supply power to VCC and GND with a voltage between 3.3V to 5V.
• The value read on SIG will vary depending on the voltage with which you power the sensor
• Recommend not powering the sensor constantly to prevent corrosion of the probes.

The SparkFun Soil Moisture Sensor is a simple breakout for measuring the moisture in soil and similar materials.

• The more water that is in the soil means the better the conductivity between the pads will be and will result in a lower resistance, and a higher SIG out.
• PCB coated in Gold Finishing (ENIG or Electroless Nickel Immersion Gold) was added to combat corrosion
• This version of the Soil Moisture Sensor includes a 3-pin screw pin terminal pre-soldered to the board for easy wiring and setup.
• Supply power to VCC and GND with a voltage between 3.3V to 5V.
• The value read on SIG will vary depending on the voltage with which you power the sensor
• Recommend not powering the sensor constantly to prevent corrosion of the probes.

The SparkFun Soil Moisture Sensor is a simple breakout for measuring the moisture in soil and similar materials.

• The more water that is in the soil means the better the conductivity between the pads will be and will result in a lower resistance, and a higher SIG out.
• PCB coated in Gold Finishing (ENIG or Electroless Nickel Immersion Gold) was added to combat corrosion
• This version of the Soil Moisture Sensor includes a 3-pin screw pin terminal pre-soldered to the board for easy wiring and setup.
• Supply power to VCC and GND with a voltage between 3.3V to 5V.
• The value read on SIG will vary depending on the voltage with which you power the sensor
• Recommend not powering the sensor constantly to prevent corrosion of the probes.

The SparkFun Soil Moisture Sensor is a simple breakout for measuring the moisture in soil and similar materials.

• The more water that is in the soil means the better the conductivity between the pads will be and will result in a lower resistance, and a higher SIG out.
• PCB coated in Gold Finishing (ENIG or Electroless Nickel Immersion Gold) was added to combat corrosion
• This version of the Soil Moisture Sensor includes a Qwiic connector.
• The value read on SIG will vary depending on the voltage with which you power the sensor
• Recommend not powering the sensor constantly to prevent corrosion of the probes.

The SparkFun Soil Moisture Sensor is a simple breakout for measuring the moisture in soil and similar materials.

• The more water that is in the soil means the better the conductivity between the pads will be and will result in a lower resistance, and a higher SIG out.
• PCB coated in Gold Finishing (ENIG or Electroless Nickel Immersion Gold) was added to combat corrosion
• This version of the Soil Moisture Sensor includes a Qwiic connector.
• The value read on SIG will vary depending on the voltage with which you power the sensor
• Recommend not powering the sensor constantly to prevent corrosion of the probes.

• This soil moisture arduino sensor uses the two probes to pass current through the soil, and then it reads that resistance to get the moisture level.
• Probes coated in Gold Finishing (ENIG or Electroless Nickel Immersion Gold) which protects the nickel from oxidation
• Pin Definition: Analog output (Blue wire), GND (Black wire), Power (Red wire)
• Output voltage signal: 0V to 4.2V
• Power supply: 3.3V or 5V DC
• Current: 35mA
• Size: 60mm x 20mm x 5mm (2.36in x 0.79in x0.2in)

Sensor is used to detect soil moisture. When the soil water is low, the module outputs a high level, whereas the output is low.

• VCC external 3.3V to 5V DC, GND External
• DO digital output moisture detection (0 and 1) with a comparator using LM393 chip. Threshold can be adjusted with onboard potentiometer
• AO analog output voltage
• Board Size: 3.2cm x 1.4cm

Sensor is used to detect soil moisture. When the soil water is low, the module outputs a high level, whereas the output is low.

• VCC external 3.3V to 5V DC, GND External
• DO digital output moisture detection (0 and 1) with a comparator using LM393 chip. Threshold can be adjusted with onboard potentiometer
• AO analog output voltage
• Board Size: 3.2cm x 1.4cm

• Soil Hygrometer Sensor Test Kit with Corrosion Resistant Probe, Digital Analog Signal Output for Garden Plant Care Automatic Watering System
• The probe uses analog resistance to detect the moisture content of the soil
• Digital value output DO (current is about 10mA); this soil moisture detector outputs a low level from the DO port when the detecting humidity reaches the threshold value
• Clockwise/counter-clockwise rotate the blue potentiometer to increase/reduce the detection threshold.
• On-board power and signal indicators make you know the working status of the board at a glance at any time
• The analog value output AO port on the soil humidity sensor outputs an analog value (voltage)
• Working Voltage: DC 3.3-12V
• Working Current: <20mA (Output Current: <30mA)
• Board Size (LxWxH): 36mm x 15mm x 6mm (1.42in x 0.59in 0.23in)
• Sensor Probe Length: 8.8cm (3.46in)
• Sensor Pin Pitch: 5 mm
• Sensor Cable Length: 1.2m (3.94ft)
• Sensor Connecting Port: XH2.54 2P

• Measures soil moisture levels by capacitive sensing
• 3-pin JST PH2.0 connector interface
• Made of a corrosion resistant material
• Output: 0V to 3V analog
• Operating Voltage: 3.3V to 5.5V DC with onboard voltage regulator
• Size: 98mm x 23mm (3.9in x 0.9in)

• Measures soil moisture levels by capacitive sensing
• 3-pin JST PH2.0 connector interface
• Made of a corrosion resistant material
• Output: 0V to 3V analog
• Operating Voltage: 3.3V to 5.5V DC with onboard voltage regulator
• Size: 98mm x 23mm (3.9in x 0.9in)

• Measures soil moisture levels by capacitive sensing
• 3-pin JST PH2.0 connector interface
• Made of a corrosion resistant material
• Output: 0V to 3V analog
• Operating Voltage: 3.3V to 5.5V DC with onboard voltage regulator
• Size: 98mm x 23mm (3.9in x 0.9in)

• Measures soil moisture levels by capacitive sensing
• 3-pin JST PH2.0 connector interface
• Made of a corrosion resistant material
• Output: 0V to 3V analog
• Operating Voltage: 3.3V to 5.5V DC with onboard voltage regulator
• Size: 98mm x 23mm (3.9in x 0.9in)

• Measures soil moisture levels by capacitive sensing
• 3-pin JST PH2.0 connector interface
• Made of a corrosion resistant material
• Output: 0V to 3V analog
• Operating Voltage: 3.3V to 5.5V DC with onboard voltage regulator
• Size: 98mm x 23mm (3.9in x 0.9in)

• Measures soil moisture levels by capacitive sensing
• 3-pin JST PH2.0 connector interface
• Made of a corrosion resistant material
• Output: 1.2V to 2.5V analog
• Operating Voltage: 3.3V to 5.5V DC with onboard voltage regulator
• Size: 98mm x 23mm (3.9in x 0.9in)

• Measures soil moisture levels by capacitive sensing
• 3-Pin 2.54mm Female Dupont interface
• Made of a corrosion resistant material
• Output: 0V to 3V analog
• Operating Voltage: 3.3V to 5.5V DC with onboard voltage regulator
• Size: 175mm x 30mm (6.89in x 1.18in)

A capacitive moisture meter with temperature and relative humidity measurement. Compatible with micro:bit, Raspberry Pi, Arduino, Pico and most microcontroller boards. Monitor soil moisture, temperature and relative humidity measurement with the Plant Monitor.

• Compatible with the BBC micro:bit, Raspberry Pi and most microcontroller boards.
• Alligator / croc clip rings
• Ready soldered header pins for your choice of microcontroller.
• Easy to use UART serial interface
• Additional analog output for moisture only
• Built-in RGB LED

A capacitive moisture meter with temperature and relative humidity measurement. Compatible with micro:bit, Raspberry Pi, Arduino, Pico and most microcontroller boards. Monitor soil moisture, temperature and relative humidity measurement with the Plant Monitor.

• Compatible with the BBC micro:bit, Raspberry Pi and most microcontroller boards.
• Alligator / croc clip rings
• Ready soldered header pins for your choice of microcontroller.
• Easy to use UART serial interface
• Additional analog output for moisture only
• Built-in RGB LED

• Contains an SHT-30 Temperature/Humidity sensor from Sensirion in a sintered metal mesh encasing
• The casing is weatherproof and will keep water from seeping into the body of the sensor and damaging it, but allows air to pass through so that it can measure the humidity outside
• The SHT30-D sensor has an excellent ±2% relative humidity and ±0.5°C accuracy
• Output: I2C
• Four wires: Brown/Red = VCC (3V-5V DC), Black = Ground, Yellow = Clock, Green/Blue = Data (sometimes the data and clock are swapped so please try both ways)
• Cable length: approx 1 meter
• 2.2Kohm pullups are built into the sensor, one each from SDA and SCL to VCC
• Sensor body dimensions: 14mm diameter, 50mm long

• Contains a FS200 - SHT1 Series Temperature/Humidity sensor from Sensirion in a sintered metal mesh encasing
• The casing is weatherproof and will keep water from seeping into the body of the sensor and damaging it, but allows air to pass through so that it can measure the humidity outside
• The SHT30-D sensor has an ±2% relative humidity and ±0.5°C accuracy and a resolution up to 14bit
• Output: Digital I2C
• Four wires: Brown/Red = VCC (3V-5V DC), Black = Ground, Yellow = Clock, Green/Blue = Data (sometimes the data and clock are swapped so please try both ways)
• Cable length: 1.6 meter
• 2.2Kohm pullups are built into the sensor, one each from SDA and SCL to VCC
• Sensor body dimensions: 14mm diameter, 50mm long