Capacitive Soil Moisture Sensor v2.0
—A capacitive soil moisture sensor that measures water content without exposing metal to the soil, so it does not corrode the way resistive probes do.
Specifications
- Capacitive sensing — no exposed electrodes
- Analogue voltage output proportional to moisture
- 3.3-5.5V supply
- Corrosion-resistant coated PCB
- About 98mm probe length
- Needs calibration in dry and saturated soil
What you can build with the Capacitive Soil Moisture Sensor v2.0
- Automatic plant watering systems
- Greenhouse and garden bed monitoring
- Home Assistant plant sensors
- Lifestyle-block irrigation control
- Classroom plant-science experiments
Compatibility
Works with any board that has an analogue input — Arduino, ESP32, Pico. The Raspberry Pi has no analogue input and needs an external ADC such as an ADS1115. Resistive probes are cheaper but corrode within weeks; this design is the reason to pay more.
Shipping
Dispatched from New Zealand with courier delivery nationwide, including rural addresses. Prices are in New Zealand dollars.
Availability: Sold out
A capacitive soil moisture sensor that measures water content without exposing metal to the soil, so it does not corrode the way resistive probes do.
Specifications
- Capacitive sensing — no exposed electrodes
- Analogue voltage output proportional to moisture
- 3.3-5.5V supply
- Corrosion-resistant coated PCB
- About 98mm probe length
- Needs calibration in dry and saturated soil
What you can build with the Capacitive Soil Moisture Sensor v2.0
- Automatic plant watering systems
- Greenhouse and garden bed monitoring
- Home Assistant plant sensors
- Lifestyle-block irrigation control
- Classroom plant-science experiments
Compatibility
Works with any board that has an analogue input — Arduino, ESP32, Pico. The Raspberry Pi has no analogue input and needs an external ADC such as an ADS1115. Resistive probes are cheaper but corrode within weeks; this design is the reason to pay more.
Shipping
Dispatched from New Zealand with courier delivery nationwide, including rural addresses. Prices are in New Zealand dollars.