Plug and Grow Hygrometer.
The plug and grow hygrometer is a vital tool for successful growing. The Hygrometer will take minimum and maximum reading of both temperature and humidity so you will know how hot and how cold your growing environment becomes over a 24 hr period.
Simultaneously shows both temperature and humidity readings
Two temperature alarms
Records min/max temperatures and humidity values that can be reset as required.
Operating the Hygrometer is very simple. Pushing the min/max button shows the min/max readings and holding it down resets the values.