Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! The pH of the soil plays a very important role in the growth of food , and most have difficulty surviving in soils that are highly acidic or alkaline. Measuring the pH and moisture levels in your soil can determine how you need to adjust the condition of your soil to promote plant growth. This product is versatile and can be used in vineyards, orchards, field production, lawn maintenance, home use, gardens, plantations, lawn maintenance Features: 1. 30cm high-precision waterproof electrode for soil measurement, more accurate and reliable. 2. Mechanical soil meter, no battery or power supply needed. and long service life 3. 2-in-1 function, can measure the pH value and moisture value of soil, one machine for two economic and environmental protection. Description: pH measurement range: 3 - 8 pH Soil moisture measurement range: 1 - 8 Accuracy: ± 0.2 pH (for agricultural applications or educational experiments) Operating temperature: 5 - 50°C (41-122°F) Note: 1. Don't insert the probe into hard soil. 2. Don't stay in the soil for a long time. 3. for liquid detection. 4. Wet the soil with water before testing. Material: Metal Color: As shown Package Contents: 1 x Soil PH Meter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.