Quickly check soil fertility, pH, and temperature with this Digital 3-Way Analyzer Meter! Proper soil conditions are critical for plant growth and development. For a quick, accurate measurement of your soil's pH, temperature, and general fertility, simply place the probe of this analyzer in your soil. After measurement, consult the detailed instructions on adjusting soil pH and fertility. Also listed are optimal soil temperatures for growth and germination of many vegetables. 1 year manufacturer's warranty.