Rechargeable Soil NPK Tester with USB C | Yieryi Save money on fertilizer and humidity—a rounded read on

and humidity—a rounded read on both your soil and the environment around your plants

We'd rather give you one number you can trust than five numbers you have to second-guess

With high-precision probes

Both make a plant look weak

or piling up to the point they start burning roots

Rechargeable Soil NPK Tester with USB C | Yieryi Save money on fertilizer and humidity—a rounded read onThis rechargeable soil nutrient tester reads one main nutrientnitrogen, phosphorus, or potassium, depending on the version you chooseon a large backlit screen, and charges over USB C, so there are no disposable batteries to swap. Insert the metal probe about two thirds into moist soil and read the value in seconds. Read it as a trend tool. The nutrient figure is a directional reference estimated from conductivity, shown from 0 to 1999 mg kguseful for