This 9-in-1 digital soil tester measures nitrogen, phosphorus, potassium, pH, EC, moisture, temperature, salinity and fertility in one device. It is designed for routine soil monitoring in gardens, greenhouses, lawns,...

This 8-in-1 soil tester for plants reads pH, moisture, EC, temperature, light, and an NPK estimate, and sends the data to your phone. Unlike USB-only probes, it works with both...

This rechargeable soil nutrient tester reads one main nutrient—nitrogen, phosphorus, or potassium, depending on the version you choose—on a large backlit screen, and charges over USB-C, so there are no...