This instrument is a good helper for gardening. It can test the pH value (pH value), soil humidity and illumination of the soil without batteries.

Usage:

when measuring the pH value and humidity of the soil, first insert the probe into the soil as deep as possible, leaving about 1cm on the probe.

Toggle the button to MOIST on the pen. MOIST is the moisture key, corresponding to MOIST, DRY, WET, and 1-3 (red part) indicating that watering is required, 4-7 (green part) is suitable. Please adjust the watering time according to the variety of plants. 8-10 (Blue part) says that Alaska pollock is wet.

Touch the button to PH on the pen, PH is the PH key, corresponding to the 8-3.5 value on the table, ALKALINE is alkali, ACDIC is acid, value 7 is basically neutral, the smaller the number, the greater the acidity. Please adjust the soil pH according to the plant variety.

The LIGHT key is the illuminance. The measurement range is 0-2000 lumens. The larger the value, the stronger the illumination. Please decide whether to shade according to the plant variety.