SparkFun Soil Moisture Sensor (with Screw Terminals)
Affiliate disclosure: Everything About Robotics may earn a commission from qualifying purchases through these links. SparkFun handles checkout, fulfillment and returns. Read our affiliate disclosure.
Observe soil-conductivity changes with this two-probe moisture board and its presoldered screw terminal. Wetter material conducts more readily between the exposed pads, producing a higher analog signal. The three-pin connector provides a solderless wiring option for connecting power, ground and the sensor output to an appropriate host input.
Before you buy
Interpret readings for the actual soil composition and contact conditions; do not assume a universal moisture percentage.
SparkFun SKU: SEN-13637 · Category: Soil moisture sensors
Check SparkFun for current price, stock, shipping and the exact included components.
Official product specifications and documentation
EAR summary based on supplier documentation; this is not a hands-on review. Product identity rechecked during the October 25, 2026 sprint. Current SparkFun Originals eligibility was verified with the supplier’s Original: Yes filter during the October 25, 2026 sprint. Affiliate eligibility remains subject to SparkFun's program terms.