Two-Prong Probe + Board

Soil Moisture Sensor Module

The Soil Moisture Sensor Module comes in two pieces: the two-prong stainless probe that goes into the soil, and the comparator board that turns its signal into a readable output. The probe is pushed in beside the root inside the pot and reads moisture from within the soil, so a dry surface cannot mislead it. The blue trimmer on the board sets the threshold to suit your own soil. The lead arrives with its connector fitted.

500 TL

• Two-prong stainless probe — reads moisture inside the soil
• Adjustable threshold on the comparator board
• Lead with connector fitted
• Unaffected by a dry surface; reads the root zone

FAQ

Will the probe rust in soil?

The prongs are stainless steel. Even so, any metal probe left in permanently wet soil can show surface oxidation over time; removing and drying it between seasons extends its life.

How do I set the threshold?

With the blue trimmer on the board. The practical method is to bring the soil to the moisture level you want, then turn the trimmer to the point where the sensor triggers exactly there.