Soil Potassium Tester for Plants | Yieryi Aquarium Water Testing Kit and grow with a single

and grow with a single button

a clear HD display

6 sample bottles

Automatic Temperature Compensation: Built-in ATC supports more consistent measurement performance across changing water conditions

A 90-degree rotatable

Soil Potassium Tester for Plants | Yieryi Aquarium Water Testing Kit and grow with a singleA soil potassium tester reads the available potassium (K) in your soilthe nutrient behind hardiness: sturdy stems, disease resistance, and fruit quality. This single nutrient meter gives you a K reading in seconds, so you can tell whether to add potassium or hold off, without a lab. Read it as a trend tool. The potassium figure is a directional reference estimated from conductivity, not a lab measurementuseful for spotting when K is running low and