The Thermometer or Hygrometer will enable you to maintain a stable temperature and humidity in your grow room.
This is very important to ensure as your plants cannot flourish in an environment that is too hot or too humid and they may even die if your climate control is ineffective.
The unit comes with or without the probe depending on whether you require the hygrometre inside or outside your grow room
This unit has maximum and minimum memory and simultaneously displys temperature and humidity.
This can be switched from Centigrade to Farenhite if required.
The indoor temerature range is between -10 degreesC to 50 degreesC.
The indoor Hygrometer range is 25% RH to 98% RH.