This is the preferred choice for potted plants or greenhouse environments working with flats on tables. The 24" is a better choice when you are growing in the ground.
FieldScout Direct Soil EC Meter
Professional-grade meter
No need to prepare samples - simply sample through the profile
Patented paired sensor tip provides maximum soil-sensor contact and higher accuracy
Sample directly in plug trays, pots, containers, solutions, or ground soils
0 to 19.9 mS/cm (Accuracy ±1%, resolution 0.01 mS/cm)