Instructions: Please note that the probe should be inserted into the soil to a depth of 2/3 (about 15CM)! Measured out is accurate! Body size: 50 * 38 * 290mm Probe length: 205mm (can't directly measure the water in the water will damage the electrode!) Weight: about 100 grams This instrument is a good helper for gardening. It can test the soil pH (pH), soil humidity and light. No battery is required. Instructions: When measuring soil pH and humidity, first insert the probe as far as possible into the soil (above 15CM) (please note: cannot be directly inserted into the water to test) Soil moisture measurement: Move the key on the pen to MOIST, MOIST is the moisture key, the corresponding table is MOIST, DRY is dry, WET is wet, the value 1-3 (red part) indicates that watering is needed, 4-7 (green part) It is suitable, please adjust the watering time according to the variety of the plant, 8-10 (blue part) indicates that it is too wet. Soil pH measurement: Turn the key on the pen to PH, PH is the pH key, the corresponding value on the table is 8-3.5, ALKALINE is the base, ACDIC is the acid, and the value 7 is basically neutral. The smaller the number, the greater the acidity. Soil pH Illumination value measurement: The LIGHT key is the light intensity.The measurement range is 0-2000 lumens. The larger the value, the stronger the light. Please decide whether you need to shade according to the plant species.
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