A conductivity meter for soil is usually an EC meter used to measure the soil’s electrical conductivity, which helps estimate salinity and overall mineral content. For direct soil testing, a probe-type meter can be inserted into the soil, while some models use a soil-and-water slurry instead.
Soil EC is commonly used to judge how much dissolved salt and mineral fertilizer is present, which can affect plant growth and irrigation decisions. Some meters also measure temperature and moisture, which makes field use easier.
Look for automatic temperature compensation, a corrosion-resistant or stainless-steel probe, a clear digital display, and a range suitable for soil testing. If you want quick field readings, a direct-penetration model is the simplest option.