Fosmon Soil pH Tester (2 Pack) – 3 in 1 Measure Soil pH Level, Moisture Content, Light Amount Soil Test Kit for Indoor… Price: $27.99 (as of 04/02/2023 18:23 PST- Details)

[MOISTURE, PH, SUNLIGHT IN ONE] Test soil moisture, pH value and sunlight by one single meter. Quickly helps you to know when you need to water your plants. Control the pH value in the soil and know whether the plants are getting adequate sunlight.
[FASTER & MORE ACCURATE READING] The premium double-needle design supports the accurate and reliable measurement of soil moisture and pH acidity.
[EASY TO USE] No batteries needed. Easily switch back and forth between moisture, pH, and sunlight position. Insert the sensor probes into the soil about 2-4 inches, adjust position of probe until pointer swings, and read the value. Clean the probe after each use.