A nice little hygro-thermometer that includes an extra probe that allows for readings to be taken from two places at once. This allows you to monitor the environment both inside and outside of the grow room more closely. You could also use the extra probe to measure the temperature of your nutrient solution.

  • Temperature range -50 to +70 degrees C
  • Humidity range 20 to 99% RH
  • Min/Max feature
  • Dual LCD for temp and humidity
  • 0 degrees C alarm function.