The EC317 portable soil EC tester is a 2-in-1 professional detector that measures soil electrical conductivity and temperature simultaneously to gauge soil salinity and nutrient concentration accurately. Equipped with a detachable corrosion-resistant stainless steel probe, it can be inserted directly into soil without tedious pre-mixing, delivering instant readings with automatic temperature compensation to eliminate data deviation. Its backlit waterproof digital screen supports ℃/℉ one-click switch, offering clear visibility under bright sunlight or dim greenhouses. Built with compact lightweight body and low-power battery design, this handheld tester suits all-day outdoor field detection for farms, orchards, hydroponics and household potted plants. It features simple one-point manual calibration and a wide measuring range of 0–4.00 mS/cm, helping growers avoid salt accumulation from over-fertilization, balance soil fertility, and maximize crop yield, serving as an essential practical tool for gardeners, farmers and agronomists.