Cornwall Digital Thermo-Hygrometer

Measures from -30 to +70 degrees, records maximum and minimum temperatures, records relative humidity from 25% to 98%. With memory for maximum control. The thermo-hygrometer is used to measure temperature and humidity in a grow tent or an indoor grow room. It is an indispensable tool for environmental control. This way, you can continuously know the temperature and humidity of your crop and see what the maximum and minimum values reached have been. Remember that the maximum temperature with the lights on should not exceed 25ºC, and should not drop below 16ºC with the lights off. Humidity during growth should be between 60-70% and 40-60% during flowering.