Digital min/max thermometer will help you chart peaks and valleys in temps that can affect your plants' health. Dual probes allow you to compare the highs and lows outside to the temps in your greenhouses, etc. Full 7-day memory for each probe with easy-reference digital display. Contains no toxic mercury. This is built to take the place of mercury min/max thermometers in the same rugged environments. Water-resistant housing for outdoor use, LCD cover protects the display from sunlight. Selectable Fahrenheit or Celsius temperature scale. The low battery indicator on LCD, auto-off display preserves battery life. Requires one "AA" battery, 2 batteries included.
