pH and moisture play important roles in the production of quality crops. If the soil is too acidic or basic, crops will not survive. This tool will be a key assistance to achieve optimally healthy plant growth. Great for: Garden planters, lawn maintenance, greenhouses, and vegetable production. Specification:pH range: 3-8Moisture range: 10%-80% (1-8 on the reading scale)Uncertainty: ± 0.3 (pH), ± 1.0% RDG (moisture)Weight: 160g No battery requiredInstruction:Remove any obstruction on the testing soil, such as grass, leaves, pebbles, etc. If the soil is dry or contains too much fertilizer, sprinkle some water onto the soil and leave for 25-30 minutes before testing.Before using the tester, thoroughly clean its metallic surface with a piece of whetting cloth. When using a brand-new tester,insert it into the soil a few times before taking your reading to remove oily impurities from its metallic surface that may affect the accuracy of reading.Insert the meter directly into the soil, embedding its metallic surface completely and tamping down the surrounding soil so that it adheres closely to the meter’s metallic electrode surface.After 10 minutes, record the reading.it is advised you take an average of several measurements to achieve the most accurate data.Press the white/green button and the pointer will indicate the correct moisture value.After use, wipe the plates clean of soil or moisture.Caution: Do not leave the metal part of the tester in the soil for too long (no longer than one hour) or it will damage the metallic surface.Make sure the metallic surface is clean and dry before storing.Do not use the tester near magnetic objects, and keep it away