HydraProbe II Soil Moisture sensor

The Stevens HydraProbe is the most scientifically researched soil sensor available and is offered by PP Systems as an all-in-one in-situ sensor that can measure both soil moisture and soil temperature. This rugged probe has completely sealed electronics making it fully immersible in water, and three strong, non-bending and non-corrosive stainless steel tines. For best results, the 3 prongs should be pushed all the way into the ground until the white body of the sensor is at minimum flush with the soil surface.

Soil Temperature Range -10 °C to -55 °C
Accuracy ± 0.3 °C at 25 °C
Soil Moisture Range 0 - 100% (dry to fully saturated)
Handle 152 mm (L) x 26 mm (Dia)
Cable Length 1.5 m
Tines 58 mm (L)