Soil meter for acidity, moisture, insolation and soil temperature, 4 functions with clear LCD screen and 20cm probe metal rod probe. Product requires batteries (not included to the set). The garden pH meter measures 4 parameters: - Insolation measurement; - Soil acidity measurement; - Soil moisture measurement; - Soil temperature measurement. Insolation measurement: 1. Turn on the meter, direct the light meter window towards the light source. 2. The brightness level is shown on the display. The LOW- indication means the lowest value, the HGH + indication means the highest value. Measurement of soil acidity: 1. Set the switch on the back of the housing to the pH position. 2. Insert the probe gently and vertically into the soil. Turn on the device. 3. The pH reagent will be shown on the display. 4. Carry out several measurements in order to obtain a more accurate measurement result. The pH 7 indication is a soil with a neutral reagent. An indication below pH 7 means soil with an acid reagent, while an indication above pH 7 means soil with an alkaline reagent. The display of "Lo" or "HH" means that the measurement range is out of range. Measurement of soil moisture: 1. Set the switch on the back of the housing to the OC position. Insert the probe gently and vertically into the soil. 2. Turn on the device. 3. The measurement result will be shown on the display. 4. Carry out several measurements in order to obtain a more accurate measurement result. The DRY + indication means very dry soil, the WET + indication means very wet soil. Soil temperature measurement: Along with the humidity measurement, the temperature measurement result will be displayed. If the probe is not driven into the ground, the ambient temperature will be displayed. The display of "Lo" or "HH" means that the measurement range is out of range.