This instrument is a great helper for gardening, capable of testing the pH value (acidity and alkalinity), soil moisture, and light intensity. It does not require batteries. The probe is approximately 17cm long.

Instructions for Use:

When measuring soil pH and moisture, insert the probe as deeply as possible into the soil, leaving about 1 centimeter of the probe above the soil surface.

Press the button on the pen to MOIST, MOIST is the moisture key, corresponding to the table is MOIST, DRY is dry, WET is wet, the value of 1-3 (red part) indicates that it needs to water, 4-7 (green part) is appropriate, please adjust the watering time according to the plant variety, 8-10 (blue part) indicates that it is too wet.

Press the button on the pen to PH, PH is the acid-base degree key, corresponding to the value of 8-3.5 on the table, ALKALINE is alkaline, ACDIC is acid, the value of 7 is basically neutral, the smaller the number indicates the greater acidity, please adjust the soil acid-base degree according to the plant species.

The LIGHT key represents the light intensity, with a measurement range of 0-2000 lumens. The higher the number, the stronger the light. Please determine whether to provide shade based on the plant variety.

When using the device, be careful not to touch the stone when inserting the electrode, and do not apply excessive force, or it may easily damage the electrode. After use, clean the electrode.

Soil pH, also known as "soil reaction," refers to the acid-base reaction of soil solutions. It primarily depends on the concentration of hydrogen ions in soil solutions, which is expressed as pH value. A pH value of 7 represents a neutral solution; a pH value less than 7 indicates an acidic reaction; and a pH value greater than 7 indicates an alkaline reaction. Soil pH is generally classified into the following levels: